Klisyri

Klisyri is a newer prescription ointment used to treat certain types of skin lesions, known as actinic keratosis, on the face or scalp. It contains tirbanibulin and should be applied once a day for five consecutive days to the affected area, using a thin layer. The manufacturers advise that the area treated should not be larger than 25 cm² (about the size of a standard hand). To use it, first clean the affected area with mild soap and water and allow it to dry. Squeeze the ointment from a single-use sachet onto your fingertip and apply a thin layer evenly over the affected skin. Make sure to apply it at the same time each day and avoid covering the area with a bandage. After applying the ointment, avoid washing or touching the area for at least 8 hours. If you miss a dose, apply it as soon as you remember, but do not apply more than once a day. Do not apply the ointment to broken skin, and be careful to avoid contact with your eyes, lips, nostrils, or ears. If the ointment accidentally gets in your eyes, rinse them immediately with plenty of water and seek medical attention. Always wash your hands before and after applying the ointment to avoid accidental contact with sensitive areas such as the eyes. This treatment should not be used if you are pregnant, breast feeding or at risk of becoming pregnant.

Common side effects include redness, peeling, swelling, and pain, itching, crusting or blistering at the application site. This inflammation can result in colour change (the skin can be lighter, darker or redder than the surrounding skin) which can be permanent or rarely scarring. Other rare side effects can include severe skin reactions such as deep ulcers or skin infections. Although rare, some people may experience more severe reactions like a burning or stinging sensation, increased sensitivity to sunlight, or allergic reactions such as swelling, rash, or difficulty breathing. If you notice any of these more severe side effects, or if the treated area becomes infected or shows signs of worsening, contact Dr Lynch immediately. As for any medication it is essential that you read the product information that comes with the packaging so that you are aware of all potential side effects.

Dr. Magnus Lynch, Consultant Dermatologist

About Dr Magnus Lynch

I am a London-based Consultant Dermatologist and Dermatological Surgeon. I am highly experienced in skin cancer diagnosis, Mohs micrographic surgery, acne, rosacea, acne scarring and laser treatments. I studied at the Universities of Cambridge and Oxford, and completed my dermatology training and Mohs fellowship at the prestigious St John’s Institute of Dermatology. I graduated from medical school in 2003 and have worked exclusively in Dermatology since 2012.

I lead a research team at King’s College London investigating the molecular biology of skin cancer. In recent years I have been involved in Media Appearances, including the Channel 5 series 'Skin A&E', where I perform skin surgeries and treat various skin conditions. Filming for the next series has recently completed and the series will be released later in 2025.

My NHS practice is at Guy's Hospital. I consult with private patients at the London Bridge Hospital, OneWelbeck (near to Bond Street station) and on Harley Street. A new consultation is £250. Book A Consultation.

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