Patchy baldness that keeps falling out can be stopped by topical medication, systemic medication, and physical therapy. Patchy baldness refers to the sudden appearance of well-defined patchy hair loss, which may be related to genetic, endocrine, autoimmune and other factors. 1. Local medication: local medication includes injection or topical application of glucocorticoid drugs, such as prednisolone and compound betamethasone, etc.; topical application of minoxidil and diphencyprone can also be used. 2. Systemic drug therapy: systemic drug therapy includes oral glucocorticoid drugs, such as prednisone tablets; oral immunosuppressants, such as cyclosporine, methotrexate, etc.; oral antihistamines, such as ibogaine. 3. Physical therapy: Physical therapy includes ultraviolet radiation, excimer laser, photodynamic therapy and fractional carbon dioxide laser. All of the above medications should be used under the guidance of a doctor to avoid self-medication. During the treatment period, baldness patients should maintain an optimistic mindset and get enough sleep, and at the same time, closely monitor the growth of hair, if the symptoms of hair loss persist or worsen, it is recommended to go to the hospital in time for consultation.