The "disgusting red scab thing" you found probably included some old blood that has now hardened. Do not pick at or remove the scab. You could, if you have, pour a couple of drops of hydrogen peroxide on top to cleanse the area. If you have any Neomycin or Triple antibiotic ointment, put a little on and cover with a small, round band-aid spot. Then wait patiently for it to heal without a scar. Faster will not be better.