Fish Skin Disease Market, By Type (Ichthyosis vulgaris, X-linked recessive ichthyosis, Others (Autosomal recessive congenital ichthyosis, etc.)), By Treatment type (Corticosteroids, Emollients, Retinoids, Others (Keratolytics, etc.)), By Route of Administration (Topical, Oral, Parenteral), By Distribution Channel (Hospital Pharmacies, Retail Pharmacies, Online Pharmacies), By Geography (North America, Latin America, Europe, Asia Pacific, Middle East & Africa)