The document discusses common skin and nail conditions treated by podiatrists, including corns and calluses, heel fissures, warts, tinea pedis (athlete's foot), chilblains, pitted keratolysis, psoriasis, eczema/atopic dermatitis, pigmented nevi/moles, onychomycosis, ingrown toenails, and blisters. For each condition, causes and symptoms are outlined as well as treatment options performed by podiatrists such as debridement, medications, orthotics, and surgery.