Chub rubs/ chafing scratch! Please help

Meg

So when i workout in the summer times i get a lot of chub rubs/chafing mostly in my things and in my groin. Sometimes I’ll get it between my buttcheeks and back of thigh.

I had some chub rub forming in my groin recently. So i stopped exercising and started to clean it and put petroleum jelly regularly . And it started to go away on its own.

However i got a cut on my inner groin where the chub rubs were.... i can feel it when i walk (it feels like the chub rub is still there) when i put more petroleum jelly it will feel fine.

Has this every happen to anyone?

I called my doctor and told him over the phone since i can’t go see him (I’m in a different state at the moment) and he said it’s fine and that it can happen. He said it’s probably from friction of my workout clothes and skin or maybe it’s from me from touching it/scratching it. The chub rub itself went away

I attached photos! Sorry it’s not the best photos but any help will be appreciated!