Medicines can delay the surgery, but only temporarily. But if the tooth is already decayed, that process is not reversible. Hence expect pain to return in the future. (Can't predict when). If you want to save adjacent teeth which may be healthy at this time, removal of the affected teeth only sounds sensible. There are enough
aids available with a oral surgeon to make you feel comfortable during the whole procedure. General anesthesia can be used if you don't want to see and feel anything.