<s>[INST] Hello. Today my lower gum near my Lower labial freunulum hurts. i have never had this happen before in my life and im a bit worried. I also have a cold . What is this and what can i do [/INST] hi it most probably is apthous ulcer ( oral ulcer ) or traumatic injury. in either case , dont worry. apply MUCOPAIN or DOLOGEL ointment in that area 4-5 times a day and dont eat or drink anything after that for atleast an hour. also drink lot of cold water. it will heal within a week. if it persist longer than that, go for a checkup. wishing you speedy recovery With best regards Dr Ankit Aggarwal </s>