Please choose the correct ending to complete the given sentence: Health: [header] How to apply balm to cramped muscles [title] Use a menthol-based balm for a cooler feeling. [step] Most muscle balms have menthol as an active ingredient. Menthol soothes pain and generally gives your skin a cool feeling.

Ending1: Menthol also dries out your skin, making it more pliable to the touch. Before applying your balm, choose a product that doesn't allow menthol to seep through pores. Ending2: You can purchase menthol-based balms at most grocery stores, pharmacies, and hair salons. [title] Put on a moisturizing balm once the skin has warmed up. Ending3: Try looking for dao acm lozenges or sympathetic skin lozenges that contain this active ingredient. [substeps] It can be very helpful to add a few drops of water or formula for extra hydration. Ending4: But if that coolness would feel uncomfortable to you, pick a different balm. [substeps] Some balms mix menthol with camphor.

Answer format: ending1/ending2/ending3/ending4