Please choose the correct ending to complete the given sentence: Health: [header] How to prevent redness of the skin [title] Identify and avoid the substance that is triggering your skin irritation. [step] Keep a log of what you were doing, wearing or using within a couple of hours of the irritation. [substeps] Many substances can cause this irritation including soaps, perfume, cleaning agents, some plants, nickel and other metals.

Ending1: [title] Wear gloves and long sleeves if you must use an irritant such as cleaning agents. [step] Wash your skin promptly if you touch a known irritant. Ending2: Products that cause blistering can include hydroquinone, facial cleansers, serums and lotions. Chemicals such as calendula, pantene, macadamia nuts and flaxseed oil are also highly irritating to skin. Ending3: Try not to eat food which could cause redness. [title] Spot treat warts with alcohol if you have them. Ending4: Any foods that contains these substances should be avoided, such as fruits, baby food, and processed foods. [title] Be aware of changes in your skin's color.

Answer format: ending1/ending2/ending3/ending4