June 7, 2004 I took Levaquin for a prostate infection. I started getting a sore throat with sores after four pills. I was treated for yeast infection with Nystatin. The doctor said that the Levaquin killed the good bacteria which lead to the yeast infection. It cleared my sore throat but now I have no taste or desire for food. I have lost 18 lbs in 2 weeks. I have neck and head pain which I was prescribed Methylprednisolone 4mg. Wed. June 30th is my last pill. I used to be healthy.