Hello
This shows that you have hypersensitivity reaction(allergy) from benzoyl peroxide.This had caused redness all over the cheek.It is not due to drug interaction with blood pressure medication.It is because of drug allergy.
A hypersensitivity reaction (similar to an allergy) occurs in the skin, causing inflammation. The inflammation causes the skin to become reddish & itchy.
You should discontinue it.Take tablet Levocitrizan 5mg once a day. Apply Calamine lotion over the cheek.This will reduce any burning sensation or itching and will clear all the redness.Both medication are availaible at counter..
Hope this helped.
Please press "GREEN ACCEPT" button if you are satisfied. A"BONUS"
given is highly appreciated.
Thanks
Doctor Manju