Have Been Tested For Allergies And Found That I Have

have been tested for allergies and found that I have as many as 30 different things that I react with. I have frequent bouts of flu like illnesses that involve lots of post nasal drips and most recently my esophagus has become inflamed also. I take allegra and dymista but these are failing to control the problems. I have tried allergy shots given by an allergy/asthma doctor but had severe edema, Now I am on sublingual drops. I am wondering if there is any hope for me. I am sick about every 4 months with this flu and pharyngitis. I am sick f taking antibiotics but they are what keep me going. Ceftin works pretty good. Any advice? I am 59 and have had these illnesses for most of my life!!