My wife had a mastectomy with a direct implant 6 weeks ago. She had fever 2 weeks after surgery and Doctor changed her antibi

2 weeks after surgery she had a fever l. The surgeon changed antibiotic and she was ok. The breast was starting to heal (the redness was getting better). After 5 weeks she was running a fever again and her breast was red again. He changed her meds again. She has no fever. I am very worried. What should I do. My wife goes to Doctor Tuesday