I have a swelling on the inside of my lower lip it looks like a bubble and you can see it unless I fold my lip into my mouth.. never had one before it looks like a blister, as if it had liquid in it it is more uncomfortable than painful, v little pain..
Hello, It could be an authors ulcer with pus collection. Consult a general surgeon and get evaluated. If there is pus collection, it must be Chat Doctor.  You can apply oral steroid paste-like triamcinolone also. Include more fruits and vegetables to your diet to prevent recurrent authors ulcers. Hope I have answered your query. Let me know if I can assist you further. Take care