I am not a doctor but fellow sufferer and I asked the same question just now.I have contracted staph and yeast in my mouth from oral implants.I too went through the same meds you mentioned and I am at my wits endl.I look 20 years older than I am and I am only 57.Thanksgiving really isn't all that is cracked up to be if you cannot chew.I do not know why people do not take this more seriously.After all people with AIDS die from low immune system and that is what ends up killing them.Yes I am also scared to death myself.I hope that we both get some answers.Please keep me updated if you get some answers for yourself.Take care...Jo