Folliculitis can happen with any hair removal method I would say. Maybe laser not so much, but overall there is a good chance it might occur whatever the removal method is.
Basically remembering adequate hygiene is usually enough against folliculitis. It's good thing to remember clean shaving products. After-shave products, like perhaps aloe vera juice can help in combat against ingrown hairs and related aggravation.
Interesting to hear about the sugar waxing, I hope it works out for you eugine! And for others as well, who are willing to try.