Oral and gum ulcers are associated with trace element and vitamin deficiencies, external trauma, and decreased immunity, etc. Depending on the cause of the disease, both general and pharmacologic treatments are available. There is no “fastest” solution. 1. Trace elements and vitamin deficiency: such as insufficient or single food intake, cooking damage and other factors can cause vitamin and trace element deficiency, resulting in oral gum ulcers. It is recommended to take isotretinoin soft capsules, vitamin B₁ tablets, vitamin B₂ tablets, vitamin C chewable tablets, etc. for treatment. 2. External trauma: If you eat too cold or too hot food, or by hard objects touching, by the fish splinter piercing and other reasons may cause gum ulcers. It is recommended that patients remove foreign objects from the gums and clean the mouth in time. At the same time, you can use mouthwash such as compound chlorhexidine gargle, lidocaine aerosol, compound borax gargle to relieve pain. 3. Decreased immunity: low immunity of the human body is easily infected, thus causing gum ulcers. It is recommended to take oral immune preparations such as transfer factor capsules, levamisole hydrochloride tablets, thymus peptide enteric-coated tablets, etc.; daily attention to nutritional supplements, eat more fresh fruits and vegetables, and supplement enough meat and protein. There may be other causes of oral gum ulcers, it is recommended that patients consult a doctor in a timely manner, please ask the doctor to clarify the specific causes, follow the doctor’s instructions for treatment or medication, do not self-medication, so as not to delay the condition.