Just no cotton swabs!

Do not clean the ear with cotton swabs as this will often push the sulfur in the ears back. If necessary, earwax is better removed by professionals. Otherwise, you may injure your ear canal or eardrum. Or it can cause hearing loss as you push more and more sulfur into your ears.

A drop of olive oil helps

My advice: once a week, a drop of olive oil is enough to keep the ear canal elastic. Ear sulfur is not so strongly stuck.