'It's the crust of fibrin & serum that forms on a wound & then dries'
a scab
DON'T PICK ME!: Its the crust of fibrin & serum that forms on a wound & then dries
It's the crust of fibrin & serum that forms on a wound & then dries
It's the crust of fibrin & serum that forms on a wound & then dries
DON'T PICK ME!
a scab
DON'T PICK ME!