Hi, Welcome to HealthcareMagic Forum.
You are having Jock Itch
or Tinea Cruris
or Fungal Infection
of Groin. You should stop scratching as it will lead to severe Bruise
. Use a Glove while scratching. Get your self examined by a Physician to rule out Jock itch. You may want to apply anti fungal creams locally as Directed by your Doctor and go for regular follow up.
Do not worry as it is a easily treatable condition.
Wish you Good Health, Take Care.