HI Sarah,
You need to boost your immune system so your own body can fight this off. The antibiotic, while getting rid of an infection, will also break down your immune system and make you more susceptible to getting another one.
Beta glucan is great for anything. They actually use it in cancer treatments in the Bahamas to boost the immune system. I keep it in my house for the first signs of anything. My 14 year old prefers to take elderberry extract that works for her. It's something you can give an infant. An absorbable multivitamin is always in need. Nutrition keeps the body working right. (Dodge the generic and the Walmart type brands, No GNC either. They are more dangerous than helpful) I can recommend one if you like.
along with all that drink plenty of water and get your exercise. I know you don't feel up to it but push through and you'll feel a lot better.
Regards,
M.