<s>[INST] I have had a root canal and a crown completed on a tooth . I am still having pain and a current infection. I have been referred to a specialist but the specialist cannot see me for another two weeks. I was given an antibiotic of cephalexin 500 mg four days ago. When should my tooth begin to feel better? I have a bruise and swelling on the outside of my cheek from the infection. [/INST] Hello Welcome to HCM, I went through your history & it suggests that your root canal treatment is not proper.This has led to infection which resulted in inflammation.You need to go for crown removal followed by Re-RCT. Before that you go for proper investigation like get an IOPAR done of associated tooth & consult your dentist. Meanwhile you start with few medicines for 5 days as prescribed:- -Amoxy-clav(650mg) combination-twice a day -Diclofenac+paracetamol+serratiopeptidase combination-thrice a day -Multivitamin capsule-once daily -Rabeprazole(40mg)-once daily(if gastric problem persist) Precautions to be taken:- -Avoid hot compresses over swelling -Do cold compresses over swelling -Do warm saline rinses-3 to 4 times a day -Maintain proper oral hygiene by proper brushing & regular use of mouthwash. Go for proper investigation as soon as possible. Take Care Regards Dr.Neha </s>