I wear dentures and have a sore on the inside of my bottom lip. what can i use to get rid of it? i have had it for over a month....

Sore on lip: See your dentist asap. If the sore is due to the denture rubbing the area, the denture needs to be adjusted. If the sore is not from the denture, it may need to be biopsied. Any sore that last longer than 7 days needs to be examined by your dentist or an ENT specialist.

Denture sores: Denture sores are usually caused by a denture rubbing against or impinging on the underlying tissues. It usually requires a simple adjustment, relining or remaking the prosthesis. However, there are other causes for persistent sores in your mouth. See your dentist for an evaluation. He\she can tell right away what's causing it and what needs to be done.

See the doctor: See the dentist who made the dentures so that they can evaluate the fit and adjust any sore spots if possible. If you have no dentist, see a prosthodontist - the specialist in dentures. If it is not from the denture then you should be referred to an oral surgeon for evaluation of the lesion.