Why does salicylic acid turn skin white?

What is happening to the white skin?

Salicylic acid is a keratolytic, meaning it loosens thickened skin so the skin falls off or can be removed more easily. On a wart, treatment strips away layers gradually. The wart should look moist and pale while you treat it. This is an expected appearance during treatment, not a reason to apply more acid. Keep the treatment on the wart, because salicylic acid can also destroy healthy skin around it.1234

What if an acne product turns your face white?

Salicylic acid treats acne by helping unplug pores and break down blackheads and whiteheads. Acne products can cause dryness or irritation, especially at the beginning of treatment. The expected pale appearance of a treated wart does not explain every white patch after a facial product. An acne product and a wart remover have different uses, despite the shared ingredient name badge. Do not use salicylic acid wart treatment on your face. Ask a pharmacist about the specific acne product if you are unsure how to use it.1567

How should you treat a pale wart?

Follow the directions for your particular wart product. The package directions explain how to prepare the skin and apply the treatment, so the small print has an actual job here.1

1. 1Soften the wart in warm water for 5 minutes before treatment.
2. 2If the product leaves a film, remove the previous film before the next application.
3. 3Gently file excess hard skin once or twice a week. Stop at the first tenderness or bleeding. Keep the file or pumice for that wart only, because using it elsewhere can spread the virus.
4. 4Dry the wart thoroughly, then apply the product as directed, avoiding surrounding skin.
5. 5Repeat treatment as directed, usually daily. Only cover the treated wart with tape or a bandage if your doctor recommends it.

Does white skin mean the wart is gone?

Paleness is an expected appearance while treatment is underway; stop when the wart has gone, not simply because it looks white. Daily salicylic acid treatment can take up to 12 weeks to work. If the wart will not clear with home treatment, see a dermatologist. A painless verruca, which is a wart on the foot, does not necessarily need treatment: leaving it alone is preferable when treatment would only cause pain.246

When should you stop using salicylic acid?

Stop wart treatment if the skin becomes sore or irritated. Allow the soreness to settle before restarting. If treatment causes pain, bleeding or blisters, stop and see a dermatologist. Do not apply salicylic acid to broken, red, swollen, irritated or infected skin. With an acne product, reduce how often you apply it if dryness or irritation develops, and discuss severe or persistent side effects with your doctor. Do not scrub facial skin to remove the white appearance, because scrubbing can irritate skin and worsen acne.12347

Who should get advice before continuing?

Do not treat a wart yourself if you have diabetes or a weakened immune system. Get advice first if you have poor circulation or neuropathy, meaning nerve symptoms such as numbness, burning or pain. See a dermatologist if you are unsure the growth is a wart, or it changes, hurts, itches, burns or bleeds. Discuss salicylic acid use with your doctor if you are pregnant, planning pregnancy or breastfeeding. Unless your doctor directs otherwise, avoid applying other acne medicines such as benzoyl peroxide or tretinoin to the same treated skin.1234