everytime i shave down there i end up with a red rash sort of like spots and always cut myself. my friend said to put shampoo or sumthing on it first in the shower then shave but it still doesnt really work. the only time shaving does is wen i let it grow then shave when its longer but i dont want to do this... does anyone know how i can shave without getting a shaving rash? what do you use??