What should I do if my skin becomes red and itchy due to an allergic reaction from a medicated patch?

May 10, 2024 Source: Cainiu Health
Disease description:

What should I do if my skin becomes red and itchy due to an allergic reaction from a medicated patch?

Doctor's answer (1)
Dr. Liu Wenmin

Skin redness and itching after applying medicated plasters may be due to irritation or allergic reaction caused by certain ingredients in the plaster. The following measures can help relieve and treat the symptoms:

1. Discontinue use immediately: Once skin redness and itching occur, stop using the plaster right away. Gently wash the affected area with clean water or lukewarm water to remove any residual medication and alleviate allergic symptoms.

2. Avoid scratching: Although itching often accompanies allergic reactions, scratching should be avoided to prevent infection and scarring.

3. Keep the skin clean and dry: Maintaining cleanliness and dryness of the affected area helps reduce symptoms and prevent infection.

4. Cold compress: Applying a cold compress using a cool towel or ice pack can help relieve itching and swelling. Be careful not to make the temperature too low to avoid frostbite or further skin damage.

5. Medication: Depending on the severity of the allergic reaction, appropriate topical medications may be used under a doctor's guidance. Common anti-allergic creams include hydrocortisone cream, tacrolimus ointment, desonide cream, and hydrocortisone butyrate cream.

If the allergic symptoms are severe or persist, seek medical attention promptly.