Please choose the correct ending to complete the given sentence: Health: [header] How to relieve pressure in your ears [title] Swallow or yawn. [step] These motions cause the tube between the middle ear and the nose and throat (the eustachian tube) to open up. Doing this can relieve the pressure in your ears, but you may have to try several times.

Ending1: [substeps] Throat defects do not involve a tube. Rather, you: breathe deeply and slowly through your nose. Ending2: [title] Chew on gum or suck hard candies. [step] Both of these actions encourage more swallowing, helping to relieve the pressure. Ending3: [title] Put your index finger or the tip of your thumb into the middle ear tube. [step] The tube that contains the earwax will open up. Ending4: [substeps] Place one hand on your nose for a few seconds and then press your nose closed. Cover your ears with your other hand, pushing all the air out of your face.

Answer format: ending1/ending2/ending3/ending4