Basic Care: The good news is that area has fantastic blood supply and so healing occurs rapidly. Inflammation (red, hot, tender swelling) is the body increasing the blood flow to the injury to bring healing factors to the area and also the veins expand to carry bad stuff away. You need to avoid further trauma to the area for a few days and let nature take it's course. A protective moisture cream will help.
Answered 1/19/2014
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