Hi! I have a question about a sulfa drug given to me for a possible UTI. I took 3/6 pills before quitting, due to my tongue starting to sting, get the denting on the side,throat starting to tighten/constrict, lymph nodes in neck swelling. Wondering how long until no longer affected. It s been 3 days and my tongue is denting again and throat feeling sore. Should I take some Benadryl, and 1 or 2 pills of that?