Hi..
Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand your concerns..
As per your complain as you have a
tooth abscess and exposed nerve, then the treatment that you are being instilled seems to be
Root Canal Treatment and in case if there is pain which is not letting you sleep, there is a possibility that the pus is not drained completely and it is leading to pressure build up in the area under the root tips of tooth and it is leading to nerve compression and pain..
In case if pain is severe as of now you can take higher painkillers like
Tramadol or
Ketorolac..
As far as
Benadryl is concerned it is an anti allergic medication and will help in treating
allergy symptoms and if you take benadryl for toothache also it will not relieve your pain, so taking benadryl is not needed..
As of now you can take higher painkiller and do cool compresses over cheek..
You should consult your
dentist soon and he can remove the temporary dressing given to you and clean the inside of the tooth and replace a medicated filling to relieve infection and pain along with continuing antibiotic and painkillers..
Hope this information helps..
Thanks and regards.
Dr.Honey Nandwani Arora.