<s>[INST] I have a lump in my right jaw line and can feel it in my mouth where my mouth joins my gums. It hurts like a bruise. I have had a terrible ulcer under my tongue in the same area which was extremely painful. Also had a bad cold with a sort throat and ear only on the right side. These symptoms have now gone [/INST] Thanks for your query, the lump in the mouth could be because of tooth infection secondary to periapical abscess or periodontal abscess or cyst. Consult your oral physician and take radiographs like IOP AR and Causal radiograph to rule out the pathologies. You can take a course of antibiotic and analgesics. The ulcer under the tongue could be because of tooth brush trauma or authors ulcer. Take topical anesthetic and analgesics. I hope my answer will help you. Take care. </s>