I had and acne issue for which i hav consulted a doc via this app and he prescribed medication i took them and once the one month corse was completed i took a break for three four days but suddenly i have started having iching on my entire face my scalp back of my ear and i have allergic reaction on my entire face..i am using DERIVA-CMS on my face already as per the doctors prescription. The iching get worse during the night time and inhave this redness and small blisters sort of things on the face and back of my ears on both sides and my scalp get alot ichy during nights and I don't have dandruff at all.