Please choose the correct ending to complete the given sentence: Health: [header] How to get rid of pain [title] Apply heat. [step] This is particularly good for areas of the body that are stiff or tight. [substeps] Fill a hot water bottle with hot water and then wrap it in a towel.

Ending1: Don't apply it directly to your skin. You don't want to accidentally burn yourself! The warmth will increase circulation and blood flow to the area. Ending2: Apply a few drops of epsom salt or your desired skin remedy to warm up the water. Use a towel wrapped in a cloth or roll on a sheet. Ending3: Placing the towel on the patient's back with the bag filled with water, place a heating pad or cloth over the area to protect the blood vessels. Allow the area to cool for about 15 minutes. Ending4: Place the heating pad on your back, and allow it to heat up for five minutes. You can apply heat for anywhere between ten and forty minutes, though most physiotherapists recommend a small amount for needs to get to your back.

Answer format: ending1/ending2/ending3/ending4