I had an itch on my outer right thigh. I did not realize I was scratching but as I got into my car I felt the soreness and realized I was still itching. I tried not itching and went to the store to get milk. I suddenly had a hard time moving my right knee. The area was extremely sore and still itchy. I got home and removed my pants to see a large bruise had formed with welt like bumps on top of the bruise. I put an ice pack on the bruised area while it still itched and it seemed a little better. I am still having a hard time moving the leg due to the soreness and the bruise is still visible with itching. I am not sure how to stop the itch.