Ichthyosis is a group of hereditary keratosis skin diseases, mainly characterized by dry skin. Accompanied by scaly desquamation. This disease mostly occurs in children, and is mainly characterized by dry and rough skin on the extended limbs or trunk, accompanied by rhombus or polygonal scales, with an appearance like fish scales or snake skin. It is aggravated in cold and dry seasons and relieved in warm and humid seasons. Easy to relapse. Multilineage genetic factors cause abnormal epidermal cell proliferation and differentiation, leading to increased cell proliferation and/or decreased cell shedding.
It is mainly symptomatic treatment, and external moisturizers are used to keep the skin moisturized. Some patients can take oral vitamin A or retinoic acid drugs. Topical corticosteroid ointment or retinoic acid ointment.