If you are prone to ear pimples, consider doing the following:
Do not scratch your ears with keys, toothpicks, pens, and the like—these all have germs on them and all you’re doing is transferring said germs to your ears. Not a good idea.
If you wear ear buds, be sure to clean them weekly. Take a cotton pad and lightly moisten it with rubbing alcohol. Swipe the ear buds with the moistened pad to remove any wax and grime that has built up from use. Also, don’t share ear buds with anybody.
Instead of rubbing alcohol, you can use tea tree oil to fight and prevent infection that may result from a pimple on the ear. Tea tree oil is a natural antibacterial and an excellent remedy for acne anywhere on the body. It’s strong and can burn a bit because it’s so potent, but that feeling will pass, and the oil will start to heal the acne. Use a clean cotton swab when applying it.
If tea tree oil and rubbing alcohol irritate your skin, try witch hazel. It’s a gentle, soothing antibacterial used to treat simple wounds. If you have facial acne, it’s safe enough to use full strength. It can be purchased at most drug stores.
Wash your hair at least twice a week. Oils can travel around both inside and outside your ear, and this can cause clogged pores resulting in pimples in the ear.
Clean your phone once a week the same way you would clean your ear buds