Please choose the correct ending to complete the given sentence: Health: [header] How to massage your sinuses [title] Rub your hands and fingers together to warm your fingers. [step] Warm hands and fingers are more comforting for the sinuses than cold hands and fingers. Cold hands and fingers can cause muscle tension.

Ending1: If this occurs, massage your hands and fingers lightly for about 20 seconds to warm them and increase circulation to your face. If you work a lot at the gym, add warm water to the water supply, including 1 cup (240 ml) of warm water to your bowl. Ending2: [substeps] Warm fingers are the hardest to massage. Make sure you are applying very few to the affected area. Ending3: [substeps] One option is to place a small amount of oil on your palm (about a quarter-sized amount). The oil helps to lessen the friction caused by your hands rubbing against your face. Ending4: Warm hands can intensify the massage temporarily. [substeps] If you need to warm up first, just using warm water or a bowl of ice water is sufficient.

Answer format: ending1/ending2/ending3/ending4