How to Prepare for a CT Scan

This guide outlines how to prepare for your CT scan, including what to wear, eating and drinking instructions, and information about contrast dye. Following these steps helps ensure accurate images and a smooth appointment.

New to CT? Read What Is a CT Scan and How Does It Work? for a simple overview before your appointment.

Check your referral

Your referral form or booking confirmation will specify whether your scan requires contrast. Preparation can differ depending on the type of CT ordered by your doctor.

Unsure why CT was requested? See Why Your Doctor Might Refer You for a CT Scan.

General preparation

  • Bring your referral, Medicare card, and any previous imaging if available.
  • Arrive 10–15 minutes before your appointment to complete forms.
  • Wear loose, comfortable clothing without metal zips, belts, or buttons.
  • Leave jewellery, watches, and piercings at home when possible.
  • Continue taking your usual medications unless instructed otherwise.

Fasting and hydration

  • If your scan uses contrast, avoid eating for 2–4 hours before your appointment.
  • Drink water to stay hydrated; clear fluids are usually fine.
  • If your scan does not use contrast, you can generally eat and drink normally.

Learn how contrast affects preparation in CT Scan with Contrast vs Without Contrast.

Patients with diabetes or kidney conditions

  • Tell us if you have diabetes or kidney problems. These conditions can affect how your body handles contrast dye.
  • If you take metformin, you may need to pause it temporarily after your scan. We will give specific instructions.
  • Bring a list of current medications with you.

Contrast injection preparation

  • For contrast scans, a small IV cannula will be placed in your arm.
  • Let staff know if you have had any reaction to iodine contrast before.
  • Inform us of asthma, allergies, thyroid disease, or if you are pregnant or breastfeeding.

For more on safety, read Are CT Scans Safe?

Pregnancy and children

  • If you are or might be pregnant, inform us before your scan. We will assess whether CT is necessary or suggest an alternative such as ultrasound or MRI.
  • For children, we tailor scanning protocols to keep radiation dose as low as possible.

On the day of your scan

  1. Arrive a few minutes early to complete your questionnaire.
  2. Remove metal items and change into a gown if required.
  3. If contrast is used, you will have a brief consultation before the injection.
  4. Relax and follow the radiographer’s instructions during the scan.

Curious what happens during the scan? Read What to Expect During a CT Scan.

After your scan

  • If you had contrast, drink extra water through the day to help flush it from your body.
  • You can eat, drink, and resume normal activities immediately unless told otherwise.
  • If you notice redness, swelling, or pain at the injection site, contact us or your GP.

Quick checklist

  • Referral and Medicare card ready
  • Loose, metal-free clothing
  • Follow fasting instructions if contrast is used
  • Drink water before and after
  • Arrive early to allow time for paperwork

In summary

Most CT scans require little preparation. Following these simple steps helps ensure clear images and a safe, efficient experience. If you are unsure about fasting, medications, or contrast, contact our team before your appointment.

Protopic For Eczema: What You Should Know Before Buying Online In Australia. Visit Our Pharmacy ↓


Protopic Review: A Doctor’s Perspective for Australian Adults Over 30

Written from the viewpoint of a medical practitioner familiar with long-term inflammatory skin conditions in Australian patients.

Attention: Living with a face, eyelid or hand rash that keeps coming back is exhausting

If you are over 30 and still struggling with red, flaking, itchy patches of eczema or seborrheic dermatitis, you already know the cycle. You wake up at night scratching. You avoid mirrors. You feel self-conscious at work, at social events, or when meeting your child’s friends. You may have tried countless “eczema creams” from the chemist, thickened steroid ointments, even natural balms — yet the rash returns, often in the most visible places: the eyelids, around the nose, the eyebrows, behind the ears, and on the hands.

Many Australians in their 30s, 40s, 50s and 60s tell me the same thing: they are tired of relying on cortisone creams, worried about thinning skin, and frustrated that ordinary moisturisers simply do not stop the itch. If that sounds familiar, there is a prescription treatment you should know about: Protopic (tacrolimus ointment).

Interest: What Exactly Is Protopic?

Protopic is a steroid-free topical ointment that belongs to a class of medicines called calcineurin inhibitors. In Australia, it is available in two strengths — 0.03% and 0.1% — and is prescribed by doctors for adults and children with atopic dermatitis. It is also used off-label by dermatologists for seborrheic dermatitis, especially on the face, because it can control redness and scaling without the side effects associated with long-term steroid use.

Unlike a regular moisturising eczema cream, Protopic contains an active medicine that works on the immune cells inside your skin. It is not simply a barrier cream; it actively calms the inflammatory process that causes itching, redness and flaking.

Protopic and T-Cell Suppression

Many patients ask, “Does Protopic suppress my whole immune system?” The answer is no — not in the way oral immunosuppressants do. Protopic works by topically suppressing T-cells in the skin. T-cells are a type of white blood cell that can become overactive in eczema and seborrheic dermatitis, driving inflammation. Protopic blocks calcineurin, an enzyme that T-cells need to switch on inflammatory signals. This reduces the local immune overreaction in the skin where you apply it.

Because Protopic is applied directly to the affected skin, systemic absorption is low. That means most of the immune-modulating effect stays where you need it — on your rash — rather than travelling through the body. This is one of the key reasons Australian dermatologists value Protopic for sensitive areas like the eyelids, neck and skin folds, where steroid side effects are a real concern.

Protopic and Seborrheic Dermatitis

Seborrheic dermatitis is a common, stubborn condition that causes greasy-looking scaling and redness on the scalp, eyebrows, sides of the nose, behind the ears, and sometimes the chest. In adults over 30, it tends to linger and flare with stress, weather changes or fatigue. Traditional treatments include anti-yeast shampoos, steroid creams and moisturisers. However, many patients become frustrated because the rash returns as soon as treatment stops, or because steroid creams on the face are not safe to use continuously.

Although Protopic is officially approved for atopic dermatitis, many Australian dermatologists and GPs with a special interest in skin conditions prescribe it off-label for seborrheic dermatitis. For facial seborrheic dermatitis, Protopic can reduce erythema and scaling, often with less risk of skin thinning than a steroid. It is particularly useful for patients who have developed steroid-induced rosacea or perioral dermatitis, or who need a long-term maintenance option.

Can Protopic Be Used Under Bandages?

In general, Protopic should not be used under occlusive bandages or tight dressings unless your specialist specifically instructs you to do so. Occlusion can increase the amount of medicine absorbed through the skin, which may intensify burning, stinging and systemic exposure. It also increases skin warmth and moisture, potentially making irritation worse.

If you use cotton gloves at night for hand eczema, a loose cotton covering may be acceptable, but tight plastic wraps, waterproof dressings or heavy bandages are best avoided. Always follow your prescribing doctor’s advice for your specific situation.

Should You Avoid Sunlight While Using Protopic?

Yes, you should be cautious with sun exposure while using Protopic. The product information and Australian dermatology guidance recommend avoiding excessive sunlight, UV light and solariums during treatment. Because Protopic suppresses immune cells in the skin, the treated area may be more sensitive to UV damage. In theory, this could increase the long-term risk of skin changes, so we advise patients to:

  • Apply a broad-spectrum SPF 50+ sunscreen to exposed areas daily
  • Wear a wide-brimmed hat and protective clothing when outdoors
  • Avoid tanning beds and sunbaking
  • Schedule outdoor activities for early morning or late afternoon when UV levels are lower

This does not mean you must stay inside. It simply means you need to protect your skin sensibly — good advice for any Australian over 30 anyway.

Protopic and Lanolin Free

Lanolin is a natural wax derived from sheep’s wool. It is found in many moisturisers and ointments, and it can be a hidden trigger for people with sensitive or broken skin. Many eczema patients discover that lanolin-containing creams actually make their skin worse, causing stinging, redness or contact allergy.

One of the practical advantages of Protopic is that its ointment base is lanolin free. The base consists of mineral-based ingredients such as white soft paraffin, liquid paraffin, hard paraffin, propylene carbonate and white beeswax. For Australian patients with a known lanolin allergy or sensitivity, this makes Protopic a much more comfortable option than some older-style greasy ointments.

Can Protopic Be Used Intermittently?

Yes. In fact, intermittent use is one of Protopic’s strongest benefits. After the initial flare has settled, many dermatologists recommend a maintenance regimen of applying Protopic twice a week — for example, on Monday and Thursday — to the areas that normally flare. This proactive approach can significantly reduce the number of new flare-ups and the need for steroid creams.

For adults over 30 who are managing a lifelong tendency to facial eczema or seborrheic dermatitis, this twice-weekly maintenance strategy can be life-changing. Instead of waiting for a red, itchy rash to disrupt your sleep and confidence, you take control of the cycle before it starts.

Protopic and Eczema Cream Differences

Not all creams are the same. A common mistake is to confuse Protopic with ordinary eczema creams or emollients. The table below summarises the key differences.

Feature Protopic (tacrolimus ointment) Regular eczema / moisturising cream Topical corticosteroid cream
Contains active medicine? Yes — tacrolimus No — mostly emollients, ceramides, humectants Yes — steroid medicine
How it works Suppresses overactive T-cells in skin Hydrates and repairs barrier Reduces inflammation broadly
Risk of skin thinning Not associated with skin thinning No skin thinning Yes, especially with prolonged use on face and folds
Best use in adults over 30 Flare control and long-term maintenance on sensitive areas Daily skin barrier support Short-term flare control, but not ideal for continuous facial use
Need to avoid sun? Yes — minimise UV and use SPF 50+ No specific sun warning, but sun protection is still wise Not usually, but sun protection always advised
Lanolin free? Yes Some are, some are not — check label Depends on brand

Protopic and Halal Certification

For patients who follow Islamic dietary and medicine guidelines, halal status can be an important consideration. As of current information in Australia, Protopic does not carry an official Halal certification symbol on its packaging. However, the ointment base is free of lanolin, alcohol and porcine-derived ingredients. The only animal-associated excipient is white beeswax, which is produced by bees and is generally considered acceptable by many Islamic scholars, though views can vary.

Because there is no official certification, patients who require strict halal confirmation should speak with their pharmacist or contact the manufacturer directly for the latest verification. In clinical practice, Protopic’s mineral-based, lanolin-free formulation makes it a practical option for many patients who are concerned about animal-derived ingredients.

Desire: What This Means for Your Skin and Your Life

Imagine waking up without that tight, burning sensation on your eyelids. Imagine looking in the mirror and seeing calm skin instead of red, flaking patches. Imagine going to work, attending family gatherings or simply being photographed without feeling self-conscious about the rash on your face or hands.

For many Australian adults over 30, Protopic offers exactly that — a steroid-free way to control stubborn eczema and seborrheic dermatitis. It is particularly attractive because it can be used on delicate areas like the face, neck and skin folds without the fear of skin thinning. With intermittent twice-weekly maintenance, many patients find they can stay clear for months, rather than lurching from flare to flare.

Here is a quick summary of the common questions we have covered:

Question Practical Answer
Can Protopic be used under bandages? Avoid occlusive dressings unless directed by your doctor. Loose cotton gloves may be acceptable.
Should you avoid sunlight while using Protopic? Yes — use SPF 50+ daily, wear hats, avoid solariums and minimise UV exposure.
Is Protopic lanolin free? Yes, Protopic’s ointment base is lanolin free.
Can Protopic be used intermittently? Yes — twice-weekly maintenance is a common and effective strategy after flare clearance.
Is Protopic a regular eczema cream? No — it is a prescription medicine that actively suppresses skin inflammation.
Does Protopic have halal certification? No official halal certification in Australia, but the base is lanolin-free, alcohol-free and porcine-free; verify with manufacturer if strict certification is needed.

Action: Take the Next Step Toward Calm Skin

If you have been living with stubborn eczema or seborrheic dermatitis, you do not have to accept it as a permanent part of life. Protopic is not a cosmetic cream — it is a prescription medicine that requires a proper assessment by a doctor. Your GP or dermatologist can evaluate your skin, confirm the diagnosis, and discuss whether Protopic is appropriate for you.

At your next appointment, consider asking:

  • “Is Protopic suitable for my type of eczema or seborrheic dermatitis?”
  • “Which strength — 0.03% or 0.1% — would be best for my skin?”
  • “How should I use it during a flare, and how do I switch to intermittent maintenance?”
  • “What sun protection routine do you recommend while using Protopic?”

Once you have a prescription, Protopic is available through Australian pharmacies. You can also ask your pharmacist about PBS eligibility, pricing and any current availability. For many patients, the investment in a targeted prescription treatment is far more cost-effective than endlessly buying over-the-counter creams that do not stop the itch.

Take control of your skin today. Speak with your doctor about Protopic — because you deserve more than just another moisturiser. You deserve a clear plan that works.



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