Many OTCs for bruises and scars don't work
Many OTCs for bruises and scars don't work...and might do harm.
Bruises. Using cold compresses for the first 48 hours helps reduce swelling...then switching to warm compresses helps lessen discoloration.
OTC bruise products (Bruise Away, etc) usually contain arnica or vitamin K...but there's no evidence they help bruises heal faster.