Cracks on fire at the corners of the mouth may be a manifestation of damp-heat in the spleen and stomach (the spleen and stomach feel damp-heat evil), stomach fire blazing, etc., and can be treated with medication under the guidance of a physician. 1. Damp-heat of the spleen and stomach: it can be manifested as cracked skin at the corners of the mouth, broken, yellow water, accompanied by pain, itching, bad breath, unshaped stools, foul smell, abdominal distension, acid reflux, no appetite and other symptoms. It can be treated by taking Ganlu Sterilizing Dan and so on. This formula should not be used if dampness-heat enters the camp, delirium (babbling) with a red tongue. 2. Stomach fire: it can be manifested as ulceration, redness, swelling and cracking of the skin at the corners of the mouth, accompanied by mouth ulcers, sore throat, constipation, bad breath, etc. It can be treated with Qingtu Huanglian Pill. It is prohibited for those who are allergic to this product and should be used with caution in pregnant women. If you find the corners of the mouth cracked, it is recommended to seek medical attention in a timely manner, follow the doctor’s instructions for examination and treatment, do not take medication without authorization, so as not to damage the body.