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Proper use of topical psoriasis treatments

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What's the best way to use calcipotriol (Dovonex®) and calcipotriol-betamethasone (Dovobet®)?
At the start of treatment, calcipotriol is usually applied to the affected areas twice daily, then when the treatment has started to work well, it should be applied once daily. When applying it to the scalp, apply after washing your hair rather than before so that the medication is not washed away. Calcipotriol-betamethasone is applied once daily to the affected areas. Like most creams and ointments, you need to wash your hands after you apply calcipotriol or calcipotriol-betamethasone to remove any traces of medication so that you avoid transfer to the eye or a mucous membrane such as the mouth.*

What is the correct way to apply products containing coal tar?
Apply coal tar products to the affected area once daily. Be sure to apply it in the direction of hair growth and leave it on for at least 2 hours (or overnight). Since some coal tar products have a strong odour, you may wish to apply it at bedtime so that you do not need to "wear" it during the day. If you are using coal tar shampoo, apply it after wetting your hair, leave it on for 5-10 minutes, then rinse thoroughly.

Applying coal tar to broken skin or delicate areas such as the eyes or the inside of the nose or mouth may cause burning, stinging and irritation. Wash your hands after applying coal tar to avoid transfer to these areas or to clothing, since it will leave a stain. Protect your skin with a sunscreen of at least SPF 15 if you go outside, since coal tar can make your skin more sensitive to the sun.

How do I apply corticosteroids?
Apply a thin layer of corticosteroid cream or ointment to the affected areas as directed by your doctor. Many people overuse these products. But using more than required won't make the medication work better or faster - it just wastes the medication. Ask your pharmacist or doctor how much to use. Sometimes, your doctor may recommend that you apply an airtight dressing overtop to help the medication sink into the skin. Wash your hands after applying corticosteroids. To avoid unwanted side effects, apply only a thin layer; do not use an airtight dressing unless your doctor recommends it, and do not use the medication more often or longer than your doctor recommends.

How do I apply dithranol (anthralin)?
Apply a thin layer of dithranol once daily to the affected areas and rub it in gently but thoroughly. Your doctor may recommend that you apply it at bedtime and remove it in the morning, or that you apply it and then wash it off after half an hour. You may be instructed to use an airtight dressing over top of the dithranol. Do not do this unless your doctor recommends it. To avoid irritation, avoid applying dithranol to your eyes, genitals, face, skin folds, or broken skin. As dithranol can stain skin, clothing, and surfaces, wash your hands well after applying it. To avoid staining your fingers, you may want to wear plastic gloves while applying dithranol .

What's the proper way to apply salicylic acid?
Apply salicylic acid to affected areas as directed by your doctor. Many different salicylic acid products are available, so talk to your doctor or pharmacist to make sure you understand the instructions for your particular product. Do not apply it to broken skin, your eyes, inside your mouth, or inside your nose, as this may cause irritation. It's also important to wash all medications off your hands after applying salicylic acid.

How do I use tazarotene?
Apply a thin layer of tazarotene to the affected areas once daily before bedtime. Wash your hands after applying. Since tazarotene can make your skin more sensitive to the sun, apply sunscreen with at least SPF 15 before going outside.

 
* Please note: These are general instructions based on how the medications are usually applied. If your doctor recommends using the medication in a different way than the instructions listed here, follow your doctor's recommendations.

All material copyright MediResource Inc. 1996 – 2020. Terms and conditions of use. The contents herein are for informational purposes only. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition. Source: www.medbroadcast.com/healthfeature/gethealthfeature/Psoriasis-Topical-Treatment-FAQ