Have never had any sign of allergy for 40 years, start from a month ago, I suddenly have a bad allergy, sneeze, running nose, cough, take Zyrtec
Now, works well, but if skip the pill for half day, all my allergy symptoms flared up, especially
asthma, tightening in airway, what to do? Feels like an indoor allergy, tried everything for dust mite free, still same
How can I do the skin pick test need 7 days antihistamine free which will kill me first?