These mites are largely parasitic and consume blood, skin and keratin. Dust mites, which feed mostly on dead skin and hair shed from humans instead of consuming them from the organism directly, evolved from these parasitic ancestors.
Hypertrophic scar (4 months after incident) A hypertrophic scar is a cutaneous condition characterized by deposits of excessive amounts of collagen which gives rise to a raised scar, but not to the degree observed with keloids. Like keloids, they form most often at the sites of pimples, body piercings, cuts and burns. They often contain nerves and blood vessels.
It can take months for a hypertrophic scar to heal. More Info: With the proper treatment, it can take two to three months to start to heal, sometimes longer, depending on the severity of the scar. A hypertrophic scar is a wound that has had tension, which has caused it to build up a skin thickness.