dear dr it is about 8 month i suffring from a very suprise disease it my upper esophagous the symptoms are: it is look like lump(I feel it is look like stricture) in my throu-upper esophagus. i take ct scan to my esopjagus also endoscopy all results are normal. my doctors says you have throut allergy then i take all type of antihistamines without any effects no traetment, I dont know what is this diseas please what is your recomendation. if you need i sent you my email.