You poor thing! First I would be going to your GP, Once he gives you something for it, double check with your Ob that you can indeed take it. Even ask the chemist when you get it. On top of that call Mothersafe, which is the most upto date mob with which drugs are safe for PG & BFing mothers to take.
Keep your fluids up also. Get your mum or someone around to help look after you & your DD that way you can both rest up as much as possible & get better nice and fast.

You poor thing, get better soon...