Salicylic acid and its derivatives (such as aspirin) have anti-inflammatory, analgesic, and antipyretic effects, commonly used to treat mild to moderate pain and inflammation.

Salicylic acid has preservative properties that can extend the shelf life of products and prevent the growth of bacteria and fungi.

Salicylic acid is used to treat some diseases characterized by excessive keratinization of the skin, such as common warts, corns, calluses, and ichthyosis.