Please choose the correct ending to complete the given sentence: Health: [header] How to use ear drops [title] Warm the ear drops in your pocket or hand. [step] Ear drops need to be at room temperature. If the bottle feels cold, you can warm it up by placing it in your pocket for 15 to 20 minutes or by rolling it in your palm for 2 to 3 minutes.

Ending1: You can also put it into your ear along with your other ingredients. [substeps] For real ear drops, check the packages of eye drops powder or similar powders. Ending2: Cold ears can be found at pharmacies and at shopping stores. [substeps] Do not use ear drops for other treatment. Ending3: Warm it up even further by putting some drops in your glove. [title] Consider using a disposable ear bud. Ending4: [substeps] If your ear drops are labeled a " suspension, " you should also shake the bottle for 10 seconds. [title] Lie on your side or tilt your head.

Answer format: ending1/ending2/ending3/ending4