It maybe due to Stress Lack of enough sleep Lack of drinking of enough water Nutritional deficiency Hormonal imbalance Side effect of other medicines if consuming any Traumatic habits if any Underlying disease. Eat balanced diet, drink 2-3 lit water daily. Consume milk, green leafy vegetables. Consume eggs and fish if non vegetarian. Get enough sleep. Try to relieve stress. Kindly visit dentist and general physician for clinical examination and blood investigations if required.

Ulcers in mouth every month needs to be evaluated for basic cause . It may be hormonal, nutritional deficiencies, malalignment of teeth , systemic disease etc . For this u need to consult an Oral Medicine and radiologist.  I m an Oral Medicine and Radiologist.  U can videoconsult me or post the picks of ur oral cavity for proper diagnosis and treatment.

Hi mam, hope this occurs every month, might be due to hormonal changes(PMS). This occurs due to stress and spicy foods too ( irritation to taste buds). The other reason which a dentist can help is that check for changes in teeth alignment which would have disturbed by attrited or worn tooth - sharp edges or might be due to heavy calculus deposit in lower front tooth area( deposits).

There are multiple reasons for ulcers , from stomach issues to local irritants, stress , spicy food , nutritional deficiencies, hormonal problems and occasionally due to underlying diseases