Pubic hair itch

Usually it had never bothered me when the hairs in my vaginal area start to grow! But lately it has, I even got tested for std’s but clear and then my doctor just said I was just “sensitive” she suggested witch hazel water after shaving and whenever my growth starts to bother! But I maybe need a new razor or method to stop this uncomfortable situation! Note: I shave every week almost every 3-4 days my hair growth is fast! Any suggestions on sensitive sling hair removal?! Thanks!