<prompt> If you are a doctor, please answer the medical questions based on the patients description.HI,I have been feeling very lethargic for about a month. It seems to be related to the pollen levels.My sinuses get swollen full of clear fluid which drains every AM.I have been tested for allergies, and was told that I am not allergic but highly sensitive.The allergist said there was nothing he could do for me. Is there anything I can do or take for this condition?  <response>: Hi, you have been feeling lethargic since one month. Sinusitis. No one can be not allergic to anything, there may be some allergy to something. I advise you to consult an E.N.T surgeon for diagnosis and treatment. There could be deviated nasal septum. I usually treat the patient with such symptoms witChatDoctorbination of levocitrizine and montelukast. Some doctors prescribe tricorn injections periodically for preventing such symptoms. Thank you. 