Maybe it's just irritation from the deodorant I'm using, but I've had these red marks/rash for a month/month and a half. I don't think it's from shaving. Fungal maybe? It doesn't itch though.
It could be all the above, shaving delicate areas can cause this issue. It can also be an infection that came, or it could be irritation. I think you should see a doctor about it.