There are many reasons for the separation of the nail bed, the cause of different rubbing medicine is also different, the common reasons for the separation of the nail bed and rubbing ointment are the following: 1, fungal infection caused by the separation of the nail and nail bed, nail thickening, first soak your feet with warm water for ten minutes, dry your feet with a foot wipe and then simply cut off the hollow nail, with clotrimazole ointment, or naftifine ketoconazole ointment rubbing the affected nail, the disease is contagious, shoes and socks, foot wash products need to be used separately from others to prevent cross infection, If the nail bed is separated due to trauma, rub the affected area with iodophor every day to prevent infection, take oral or intravenous anti-inflammatory medication, and then cut off the hollow nail after the swelling has subsided. 3. If the patient has atopic dermatitis or lichen planus or other skin diseases that invade the nail bed and cause the nail bed to separate, take oral medication for the original disease and rub the affected area with vitamin A ointment.