Hollow white toenails need to be treated according to the specific causes, such as physiological phenomenon, lack of nutrients, fungal infections, etc., after diagnosis, choose general treatment, medication and other ways. 1. Physiological phenomenon: the toenails are subjected to friction and extrusion for a long time, which can damage the nail plate, thus causing the phenomenon of white and hollow toenails, usually avoiding prolonged wear and tear can be. 2. Lack of nutrients: lack of vitamins, trace elements and other nutrients can affect the growth of nails, so the phenomenon of white toenails. This phenomenon requires appropriate adjustment of diet and nutritional structure, without special treatment. 3. Fungal infections: Fungal infections can cause whitish and hollow toenails, accompanied by localized peeling, itching and other phenomena. For treatment, you can use antifungal drugs as prescribed by your doctor, such as amorolfine hydrochloride or oral itraconazole capsules. There are many reasons for the whiteness and hollowness of the toenails, and it is recommended to go to the hospital in time to improve the examination and take standardized treatment according to the doctor’s instructions, so that you can’t ignore the symptoms and take them lightly.