Please choose the correct ending to complete the given sentence: Youth: [header] How to get rid of blackheads when your skin is sensitive [title] Try salicylic acid. [step] Though this type of acid may cause you to have a reaction if your skin is sensitive, it's the best over-the-counter cleaner for whiteheads and blackheads. It treats blackheads by reducing swelling and unclogging blocked pores.

Ending1: Try looking for a foaming cleanser with this product in it. You can also apply it as a cream, gel, or ointment. Ending2: [substeps] When applying this product you need to use a very small amount, as it can leave an obvious punch when applied to the whitehead. It will take about a week to work, but you can give it about one month at the most. Ending3: [substeps] Apply an eight hour salicylic acid solution twice a day for men and three times a day for women. You should see improvement in an hour or less. Ending4: In addition, even mild acne from acne reflux can be covered up with salicylic acid. Salicylic acid allows the skin to become more hydrated, causing faster healing.

Answer format: ending1/ending2/ending3/ending4