If there is excessive stomach fire, it can cause oral ulcers, because excessive stomach fire leads to poor digestion in the gastrointestinal tract. If food cannot be digested properly, it will reflux into the mouth, and may also cause symptoms like throat pain and a dry, itchy throat. Therefore, if stomach fire occurs, it is essential to treat it promptly to avoid worsening the condition. Drinking some rose tea or chrysanthemum tea can effectively clear heat and detoxify, helping to reduce stomach fire. Most importantly, do not drink alcohol, smoke, or eat spicy and irritating foods, as these can exacerbate stomach fire.