Salicylic acid is an organic acid that occurs naturally in plants, especially the bark of the willow tree. It's chemically similar to acetylsalicylic acid, which is the active component of aspirin. Salicylic acid and its salts are commonly used in lotions to treat skin conditions.
Medical History
A dermatologist will need to know your medical history before prescribing a salicylic acid lotion. This includes pregnancy, current prescription medications and allergies. It's especially important to inform your dermatologist if you're allergic to aspirin or non-steroidal anti-inflammatory drugs (NSAIDS.)
Treatments
Lotions that contain salicylic acid are topical treatments, meaning that you apply them directly to the skin. They're most often used to treat acne but salicylic acid lotions may treat other skin conditions, such as calluses, warts and psoriasis. Your dermatologist may also prescribe salicylic acid lotion for other purposes.
Application
The label on the salicylic medication will provide usage instructions but you'll generally wash the affected area with soap and water and apply the lotion just before you go to sleep. Dry the area completely and apply a thin layer of film of medicine to the affected area. Rub it in gently to distribute the lotion evenly. Wash the lotion off in the morning.
Purpose
The primary purpose of salicylic acid lotion is to remove excess skin, which can treat some skin conditions. It initially causes the skin to swell and soften. The skin should then eventually peel off, although it may be in tiny particles that you can't see.
Interactions
Medications that may preclude you from using salicylic acid lotions include NSAIDs such as celecoxib, ibuprofen and naproxen. The side effects of anticoagulants like heparin, methotrexate, sulfonlyureas and warfarin may become more severe when you take them with salicylic acid lotion.
Safety
Salicylic acid lotion shouldn't be swallowed or applied to any mucous membranes, such as the eyes, mouth or nose. It should be used with caution on children under the age of 12. Children should never use salicylic acid lotion if they have viral infections such as chickenpox or influenza. You shouldn't breastfeed while using a salicylic acid lotion.
