I have took doxycycline so treat a uti and felt unwel all week i have just found out from my docter that i am allergic to doxycycline i ive finished the course now will i start to feel better soon now the course is finished?

Most common side effects of Doxycycline are GI symptoms such as nausea/vomit/poor appetite so I wonder what your symptoms are because side effects are different from allergic reactions such as rashes and itching, angioedema, with anaphylactic reaction is the most severe form. Either side effects or allergic reaction, symptoms usually resolve after stopping the offending agent.

Was UTI confirmed? UTIs are uncommon in males your age. If you had discharge from the penis, probably it was nongonococcal urethritis, especially if you are at risk for STI. Some non-specialists don't understand the difference UTI and NGU. You should have had STI testing if at risk. I agree with Dr. Le your symptoms may be GI upset from doxycycline, which uncommonly causes tru allergy.