Male 22, doc suspects mast cell disease. i use zantac (ranitidine) for my acid, can i take ceritrizine otc myself until i get tested? is it safe to take both?

Mast cell disease: Mast cells disease can cause acid reflux and hives and itching and you can use zantac (ranitidine) and Cetirizine to treat the symptoms. Not sure if your doctor wants to do a skin test, but zyrtec will affect it, so check with your doctor first. If the doctor only wants to do blood tests, you can go ahead and take both, but check with your doctor first.