I have on and off hives

I have on and off hives since September of 2016, I have 2 RediMed Visits, 4 Family Doctor Visits and 4 Allergist appointments. I been on Zytec for 4 years for sessonal allergies, I one start braking on with redness, and itchy. I went to RediMed the 1st time they say it was a RASH. The 2nd time it was bed bugs. The 3rd Family Doctor Visit say Allergies, they put me on cream, the 4th Family Doctor Visit they give me a shot and refer me to an allergist. The Allergist Uped my dose of Zytec to X2 a day during outbrakes I will take a 25mg Bendryl at night if there any hives. I went for a follow-up They take it back to X1 for Zytec then I started to have outbrakes again, I called theu up it X2 a day for the weekend and went in monday they say to start taking a acid reflux medicine X2 with my daily allergy medicine. I have a follow-up appointment soon.