Please choose the correct ending to complete the given sentence: Health: [header] How to treat joint pain [title] Apply an ice pack for 15 minutes. [step] Put a handful of ice into a plastic bag and wrap it with a towel. Or, pull out a cold compress from the freezer.

Ending1: You can also try an ice pack specifically for your joint pain. [substeps] Pressing ice into the joint after daily activities will help to reduce swelling and pain. Ending2: Place this on your painful joints for a maximum of 4-5 times a day , 15 minutes each time. [substeps] The ice reduces pain by slowing down the blood flow to your joints. Ending3: Never place ice directly on your skin, as this could burn your skin. The cold will also further stimulate blood flow to the area and promote healing. Ending4: Leave the ice pack on your joint for 15 minutes before touching it to make sure no further swelling develops. [substeps] Repeat this daily, for approximately 10-15 minutes.

Answer format: ending1/ending2/ending3/ending4