It is common for skin on the outside of your vulva to be bumpy. The skin can also bea bit leathery in texture. When you shave, this can become more apparent.
Why are you worried or scared? Why are you using Ministat if you do not have a yeast infection?
You should only wash with clean water and your fingers. Make sure you wash in all the folds and crevices between your lips and under your clitoris hood. Do not wash inside your vagina, it cleans itself and when you wash or douche inside your vagina, it can cause a yeast or bacterial infection.