I have what I feel sure to be fissure tongue.  My mouth is sensitive to heated foods.  This painful tongue that I have, whether it is fissure or not, came about AFTER I began taking a new medication called zenzedi.  Help me please get some relief from the painful tongue.  The zenzedi is what will with me except for the painful tongue.  Please help.
Thanks for your query, I have gone through your query. The exact cause of fissure tongue is unknown, But it can occur in association with Wilkerson Rosenthal syn Chat Doctor.  It can occur at any age(both healthy and non-healthy conditions). The burning sensation can be because of the super added fungal infection like candidiasis. So consult an oral physician and get yourself examined to rule out the above said conditions. The burning sensation can be solved by maintaining the tongue hygiene, using topical antifungal like clotrimazole 1% ointment 3-4times daily for a week, and topical anesthetic and analgesic like 2%lignocaine gel, apply 3-4times daily for a week. Do saline gargling. I hope my answer will help you, take care.