The surface area of the rash isn't wide its like 3-4 lines on her inner thigh/belly, idk what it is. I took her swimming today at the dog park, could it be that? Could like her thighs/legs/belly rub together to cause some sort of small rash ? Idk if it serious, she doesn't seemed bother by it at all, she is just chilling, but I don't want to take the chance, I would take her to the vet but the vet is closed atm. Any ideas what this is ?