You can also opt for low level laser therapy for non healing ulcers. You may enquire regarding it in a good clinic.

Hello sir, Though the lesion in the picture appears very hazy, given the region and history, it could be an aphthous ulcer or traumatic fibroma. A clinical examination and assessment of lymphnodes for involvement of any would give a better insight on the diagnosis.

Hello, The picture is not clear enough. Kindly also provide a little more detailed history Does it hurt? Does it burn while eating hot or spicy foods? Has it increased or decreased in size?

Though the pic shared is not very clear ,it looks like a traumatic bite causing erythema and ulceration. Gels like kenacort/rexidine will reduce inflammation but unless the cause is dealt with ,it will not resolve completely. Please see a dentist for proper clinical examination ,doesn't look worrying but get it checked.

Hello It looks like frictional keratosis or pigmentation Kindly get the the tooth sharp edges rounded up

Hello Please attach a clear picture

Hello Sir, The lesion here seen in the picture is not clear and is not possible to diagnose and come to a conclusion via a photograph. If there is no relief seen by applying Kenacort , kindly visit the clinic in person as we can know about the history of the problem effectively and guide you with the proper treatment plan. Also stay calm and do not get stressed.