Allergies!!!!

I have INSANELY bad allergies right now, and I am 8 weeks pregnant. I had my first appointment today, and my doctor told me I could take Claritin. I took one pill and it didn't help at all. I just took another one. Can someone PLEASE tell me what kind of allergy medicine they use that works amazingly? Please! When my allergies hit me, they hit me hard. I swear, my allergies are gonna be the death of me! Ugh! Please help!!