Maybe your Dr. should prescribe you an Epi Pen to keep with you at all times. My allergist Prescribes me one.

I know this sounds bizarre. I thought I had constant allergies. Then I started coughing every time I’d blow my nose. I started to think it wasn’t allergy. So I stopped use tissues. Crazy idea. But allergy to TISSUES IS A THING!! No more allergies! I use old fashion handkerchiefs when nose is drippy.
( unless I’m in a store!) then I use cheap paper napkins! Voila!
Good luck all you drippers and sneezers out there!!

I was told by my PA that Benadryl is an old drug try Claritin D. And I really like her.

Other than just staying inside I take Benadryl it works very well only thing it makes me sleep but it works

Wash hands frequently.
Keep outerwear on porches/mud rooms when possible
Wear a mask outdoors and dispose of it before going outside
Ask your doctor about using an antihistamine