Hi, My 6 year old son has small lumps at the back of his bottom teeth. He is on penicillin as we went to the doctor who could see pus on this tonsils and tongue ulcers.  He has had temperatures. On one side the lump has increased in the last day & is very painful. Could this be an abscess or something to do with molars coming through ? Many thanks.
Thanks for your query, I have gone through your query. The lumps and pus discharge could be because of the infected tooth or infected gums causing periapical abscess or periodontal abscess from an erupting tooth. Consult your oral physician and take a radiograph to rule out all these things. You can take metronidazole 400 mg along with penicillin after consulting physician. This is effective in abscess or pus producing infections. Do saline gargling. I hope my answer will help you. Take care.