Sinus infection and 39 weeks 2 days. Survival tips?

Verity

The coughing fits are causing mini cramps, I've lost I think all of my mucus plug now, but in bits so I'm prepared for it to regenerate and lose more. My doctor has given me an antihistamine and antibiotics but I just feel so crummy, coughing up green stuff and a very sore throat and ears. I want the infection to pass before I go into labour, but if it can't how on earth will I cope?