Hi, Noted your history about allergies, taking Loratidine, Flonase, suffered nervous breakdown, since then have small blisters on uvula and sore throat. The commonest causes I can think about your symptoms are as follows: - Reduced integrity of mucosa due to some problem in gastrointestinal system like colitis, reduced absorption of vitamins, mineral or trace elements, smoking, eating and drinking habits. I would advise you the following in such a situation: - Consult an ENT Surgeon for evaluation of the allergic problems and the ulcers on uvula - Take probiotics - A course of Metronidazole may help - Take multivitamins, mineral and trace elements after consulting your pharmacist - Continue the treatment in the form of Loratidine and Flonase nasal spray - Improve your diet to have balance and also identify the factors, foods and beverages that instigate or enhance the problems Take care. Hope I have answered your question. Let me know if I can assist you further. Regards, Dr. T. Chandrakant, General Surgeon