Hi..
Can understand your concern..
As per your complain the symptoms that you have explained shows that you have been allergic to any of the medications that you are taking to relieve your dental infection and pain..
It can be more commonly be due to
allergic reaction to penicillin group of antibiotics which you are taking or codeine which is the constituent of painkiller as
Tylenol and
ibuprofen are commonly tolerated but can also cause side effects or allergic reaction..
I would suggest you to consult your
dentist and explain him the immediate symptoms so that he can reduce the dose or change the medicines..
For mouth bumps you can do gargles with 1:1 solution of
milk of magnesia and
benadryl.
Once the medicine is withdrawn slowly the symptoms will get less severe and even you can take antihistamines like allegra or benadryl to get relief..
For problem with the abscessed tooth although the pain is reduced but it can still get aggravated once the medicine is withdrawn as the infection source is not removed..
You should get the tooth treated with
Root Canal Treatment and if it cannot be saved extraction should be done for permanent relief..
Hope this information helps..
If you find the answer helpful please write a positive review and click on find this answer helpful as a token of appreciation..
Thanks and regards..
Dr.Honey Nandwani Arora.