Dab a cotton ball in witch hazel and apply it directly to the skin immediately after shaving to close the pores and prevent any dirt or contaminants from clogging them.
How to Heal Ingrown Hairs
Add 1/8 cup of warm water to a small bowl.
Stir in 5 drops of tea tree essential oil.
Dab a washcloth and gently rub the affected area twice daily to open the pores, soften the skin, and loosen the hair.
After a few days, the ingrown hair should emerge and, if necessary, can be removed carefully using clean tweezers.
Notes
While this works incredibly well, you will need to perform a patch test on the back of your elbow before using any of the ingredients for treating ingrown hairs.