What is going on here? First it was just 1 a week ago, now there are 7 or 8 of them. They are not painful, they occasionally itch but not bad.
You obviously have some form of irritation going on, the only problem is identifying the source.
Sweat can often be part of the problem. Are you an active person and do regular exercise most days? Do you sometimes shave off your pubic hair, or do you just keep it trimmed?
Obviously, once you have irritation like this the natural instinct could be to scratch at then and this will only make the issue worse, so make sure to avoid that.
Also, when you wash or shower try to use mild shower gels and soaps for sensitive skin of allergy skin types as regular detergent based soaps and body washes can be a major problem when you have irritation like this. The other side of washing and showering is making sure the entire groin region is completely dry, as if there is moisture in the area on a regular basis you can have quite a harmful cycle of irritation in place anyway.