Can you mix norco and Zyrtec?

i was wondering have really bad Allergies to to cats, i happen to be at my friends house. He offered me some blow, so as a young male i agreed in my half drunken state of mind. He let his cat in from outside and the cat immediately jumped on the table and whirled his tale in my face....etc. i took some benadryl to calm my itching and swelling is that ok?