Sandy soil dermatitis in medicine refers to frictional mossy rash, due to the existence of individual differences, there is no frictional mossy rash with which ointment is better this statement, it is recommended that patients follow the doctor’s instructions to apply glucocorticosteroid ointment, calcium-modulated phosphatase inhibitors and other drugs, such as dexamethasone, tacrolimus and so on. Glucocorticoid drugs are effective in the treatment of frictional lichen planus, reducing the immune inflammatory response, itching, desensitization, etc. Patients should apply dexamethasone, hydrocortisone, and tretinoin ointments as prescribed by the doctor. Tacrolimus, pimecrolimus, and other calcium-modulated phosphatase inhibitors may also be prescribed to help reduce the immune response. For patients with frictional lichen planus, it is recommended to consult a doctor at a regular hospital and use medication under the doctor’s supervision to avoid unauthorized use of medication.