Allergy problems

Has anyone ever gotten the allergy shot while pregnant? Or know if it’s safe? My allergies are intense all year round. When not pregnant I’d take like 4-6 Benadryl a day. I know I can’t do that while pregnant so I’ve been miserable for 15 weeks 😂 One Benadryl does nothing unfortunately.

If you have any other recommendations you can tell me those also.