<human>: Hi I have had a painless lump under my left jaw for three weeks now, it is probably 3 centimetres and I can move it slightly. I have no sore throat and the back of my neck/base of my skull have been aching a lot. I have been to the doctors and was told to come back again as it was an open surgery. I am due to see them again in two weeks but am getting really worried over this. Could someone please let me know what this may be?
<bot>: Hello, Typical swellings involving the jaw involve an infected tooth, a CST or salivary gland. Lymph nodes can become inflamed and swollen when helping to fight an infection. What type of diagnostic procedures have been completed? It sounds like a suggestion was made on treatment, but I do not understand your diagnosis? Some infections with swelling will resolve with antibiotic treatment and a root canal as the recommended treatment. If a swelling persists, it may require an incision and Chat Doctor.  Are you taking any medication to control inflammation? Were you given an antibiotic prescription? I am glad to assist you further with additional details. Thank you for your inquiry.