Suggest Treatment For Strep Throat And Chest Congestion

A couple weeks ago, I went to the doctors and tested positive for strep and had bad chest congestion. I was prescribed antibiotics, and given inhalers. I finished all the medications, and the strep went away, but I still had bad Chest congestion and a lot of phlegm so I went back to the doctor and he gave me a different round of antibiotics and another inhaler. It s now 5 days later, and I m still running a fever and still have a lot of phlegm. And I might have a yeast infection. Why am I getting so many infections?