But i still think celibacy is the cowards way out of dealing with life.
And anyway in the Bible I thought it said that is sinful to inflict pain and suffering on yourself and others.

Comparing leg waxing (not painful really) with long term damage and scarring I dont think is one of your better analogies :). What purpose does deliberately hurting your body serve? Leg waxing makes your legs feel cleaner and look nicer.... a puss filled scar doesn't.
Botox pain is really minimal and not frequent - this is daily for two hours....again to what purpose?