At puberty, increased hormonal activity and industry of androgens, cause the sebaceous glands or oil glands to overproduce sebum, or oil.
Really is, it is not caused by anything you'll be doing. A normal follicle has sebum the actual reason produced because of your sebaceous glands. https://www.theralife.com/blepharitis-treatment-how-i-cured-my-blepharitis/