Foliculitis?

I know it would be better with pictures, but I havent taken any yet. My son has been getting little red bumps on random parts of his body. At first I thought they were bites, but there definitely not. Like 4 popped up...a couple on his head and then arm and leg. They went away and he didnt have any for a while and now there's more. They look like little pimples almost..like whiteheads. Or maybe more like an irritated hair follicle? Like I get on my legs sometimes after shaving. I googled and found foliculitis. ? Idk if maybe it's because he gets a little sweaty since it's been hot and his crawlinf around and causing friction on the skin. But they're random places like his back, buttchecks, etc. They dont really look very red around the actually bump and he's not scratching or anything. Idk.