I just can't go over to their house

For a few years now, I have been going over to my boyfriends bestfriends house with him on the weekends. I guess overtime I developed an allergy to their pets. They have 2 cats and 3 dogs.

I also developed a friendship with his lady and their son.

Well my allergies act up so bad there. Sneezing, coughing, can't breathe, hives. My eyes itch like hell and swell up. I wake up and my throats hurts like shit. So I've barely been going over there and they say stuff about it like "you don't want to come over anymore" and I'm like no, I do. I just can't breathe in your house because of your pets man.

I don't know what to say about it and if I should say anything. I feel bad for it.

They know about my allergies like I've asked for Benadryl and told them I'm breaking out in hives and stuff. I take allergy meds with me everytime I go now. I'm sure they hear me sneezing my brains out at night. I take Benadryl Before I go and while I'm there and it just barely touches it until I get out of the house. If I leave the house im fine.