Please choose the correct ending to complete the given sentence: Education and Communications: [header] How to stop your legs from itching when you run [title] Change your detergent or fabric softener. [step] Chemicals in the detergent or fabric softener you use may be irritating your skin. Even if you haven't had any problems before, when your skin is warm and you're sweating, you may have an increased sensitivity.

Ending1: [substeps] Switch to detergents and fabric softeners designed for sensitive skin, or that contain no dyes or perfumes. Typically you can find these wherever you normally shop for laundry supplies at the same price as the detergent and fabric softener you usually buy. Ending2: Remedy any discomfort by placing an ice pack on the irritated area for a few minutes. Wear gloves when touching your skin to avoid accidentally ruining the delicate fabric fibers. Ending3: For these reasons, you should change your detergent and fabric softener as often as you can. If the itching persists for longer than a few hours, get medical attention. Ending4: Take a bottle of alternative, non-irritating synthetic fibers and stretch them over the affected area (e.g., the back of your neck). [title] Use an anti-itching cream and lotion.

Answer format: ending1/ending2/ending3/ending4