Advair HFA and oral antibiotic

I have taken 100/50 Advair off and on for several years and hadn't noticed any problems. Three weeks ago I was switched to 250/50 strength Advair following a bad cold which I believe had become bronchitis but my NEW doctor believed was an asthma attack. I don't have asthma "attacks". I just have asthma which is always under control except for when I am exposed to smoke. Even then it isn't that bad. I just use a puff or two on my inhaler and I am good to go. So, I don't think I even needed to be put on the 250/50 strength! Right away, even with careful rinsing, I started to develop a sore throat. I had a constant cough, had to constantly clear my throat to try to speak and it hurt to talk. Within two weeks, besides the throat and congestion problems, I felt miserable as if I had a severe case of influenza: major headache, sinus and teeth pain, joint pains, severe fatigue, chills, burning eyes and blurry vision. I also developed an itchy red rash on my buttock and felt as though I was beginning to get a UTI. Because I felt so lousy, I told myself I didn't have to take the Advair which I knew would just make my throat feel worse. So, I went a whole weekend without the Advair and I started to feel better. Then on Monday morning, I took the Advair (which immediately made my throat hurt) and later went to see the new doctor in the afternoon. (We didn't discuss Advair because I hadn't made the connection and, obviously, he didn't either.) The doctor said I was negative for a UTI and thought my rash was cellulitis. He prescribed an oral antibiotic. I haven't taken any Advair since Monday a.m. because I read about its side effects on the Internet on Monday evening. My throat feels better. It is so good not to be constantly coughing and clearing my throat! The rash didn't respond to the antibiotic, but it did respond to the anti-yeast infection skin cream I decided to use on it. Unfortunately, the antibiotics DID give me a vaginal yeast infection and now I am also treating that! I am wondering if there is a connection between my skin yeast infection and the 250/50 Advair or if Advair just causes thrush (a mouth yeast infection)? Also, my eyes still burn and I still get blurry vision. Could I have a yeast infection in my eyes? I'm wondering because I have read on the Internet that steroids--just like antibiotics--can cause yeast infections. If so, then maybe thrush is not the only type of yeast infection that 250/50 Advair could cause?