For Betty L., How old is your husband? When did his fever start and what symptoms did he have when they started?? Does he have periodontal (gum) disease? Who gave him the penicillin and for what reason? How many teeth need to be extracted, and why? (gums bad or decayed teeth?) If he is having pain under the rib cage, you should see an Medical doctor for that. Excessive weight loss as he is experiencing signals a trip to the MD.