Should solve the shaving bump problem
Yes it'll make it nice and smoothe, takes a little longer than conventional shaving but well worth the time and price. The hair has to be close or it won't work, so their is a trimmer that you use first, then put the pussy shaver on it and itll be nice and smooth. She can use it everyday without irritation like most razors.
If the bumps are ingrown hairs this ain't gonna help though, for that she should use a product called tend skin, makes the hair pop out but does tend to dry the skin out a bit so don't let her overuse it.