 [ Symptoms ] bothered about 3 4 years with sores in mouth doctors have given me clotrimazole lozenges to dissolve not cancer comes and goes dont know what is wrong want to get rid of this for good [ Disease ] hi the symptoms are due to thyroid problem but if it is not ruled out then neurological problems nutritional deficiencies or simply stress can be a cause consult an endocrinologist or neurophysician and get re examined hope this helps