Antibiotics lower your immune system b/c they take all of the bacteria out and you need "good bacteria" in your system. My family does not ever take an antibiotic - we have natural supplements that work wonderfully.
The first thing I suggest is that you do not take anymore rounds of antibiotics and go to your health food store and get some Acidophilus (it comes in liquid form) or you can get a good ProBiotic (Garden of Eden Primal Defense is awesome.) This will put the good bacteria back into your system and boost your immune system.
The second thing you need to start taking is Colloidal Silver. This fights viral and bacterial infections. Anytime you start to get sick, you need to take this.
Did your Dr say whether it was viral or bacterial? If he didn't mention strep then it is Viral and you should take Total Virx (I believe you have to order it online. I get it from my Dr here in Angleton.)
If he said it was Strep/Bacterial then you need to take Total BactT.
My husband, two young children & I always take these things when we get sick and it works better than anything. I also love the fact that the whole family can take it and there are no side effects. If you are interested in trying these products, let me know and I will tell you exactly where to get them. (I do not sell any of this, I just know where to get it cheap!)
Praying that you get well,