What Causes Red Rashes On Breast A Year After Breast Surgery?

5 weeks ago had vertigo. Pa prescribed Dramamine and nasal spray. Sick since. Went back to the doctor at 4 weeks. Sinuses and ears had fluid, suppressed cough, sore throat, etc. Pa prescribed 2 weeks augment in, 5 days prednisone. After 5 days had thrush and still not feeling better. Yesterday woke up with red lesion on right breast that resembled a burn. Had surgery on that breast last year in April for nipple discharge. Went to doctor. Pa said get a mammogram on Monday. I quit taking the anti biotics an prednizone today because they seem to be making me worse. In think the lesion is thrush. Red ring that somewhat resembles ringworm but has a raised type blister and somewhat stings.