Where are the Ingrown Hairs Located?
Is there a pattern? Are they located in your panty/underwear/bikini line?
If so, change the style of your underwear often. One day wear boy shorts, another day wear high waist, another day wear a thong, etc. The idea is to have your underwear hit you in different areas.
Ingrown hairs can be caused by friction. Change where your underwear is causing friction by changing the style of your underwear from one day to the next.