Usage patterns
〈場所〉に擦り傷ができるto get a scratch/graze on (a part of the body)
I fell and got a scrape on my knee.
擦り傷を負うto sustain a scratch/abrasion
He sustained a scrape on his arm in the accident.
擦り傷の手当てをするto treat/care for a scratch
My mother treated my scrape for me.
擦り傷が治るfor a scratch/graze to heal
The scrape healed within a week.