Scab or crust of abrasion appears brown in:
Fresh Raw & Reddish 2 - 24 hours Reddish scab (lymph, blood dries up) 2 - 3 days Reddish brown scab 4 - 5 days Brown scab 6- 7 days Scab falls off. Remember the mnemonic RRRBBB
12-24 h
2-3 days
4-5 days
5-7 days
Mechanical Injuries