Family, Internal Medicine, General Medical Questions/Allergic reactions
as a general question, is it possible for someone to have an allergic reaction like a rash to a drug used locally as a cream, but to not have a reaction to the same drug taken internally as a pill?
Technically, no, but you don't get the same ingredients between a pill and cream..... Creams have fillers and stuff in them to keep them semiliquid, pills have fillers.... If you react to the exact drug in a cream, not the fillers in it, then you will react to it, internally too