I had a bottom molar removed 2 days ago. When removed the Dr put foam in the socket and 1 stitch due to previous history of dry socket. 1 day post op there was great pain. The Dr did not see my but called in antibiotics and pain meds. Today, I did see him because the pain had gotten worse and the swelling had gotten hard. He looked at it and said it was infected. When lightly pressing on it or around it pus would come out and it smells horrible. He said to keep taking the antibiotic. My questions are; how long does it take before you notice an improvement on the antibiotic Erythromycin?(250 mg 4 times a day) How long before the pus and smell go away? As there is foam and a stitch in the extraction site does that mean it will take longer for it to heal? My Dr was nice but not informative and he is out of town until next year. Any help would be appreciated.