Burn patients which skin has been lost a rapid growth of the skin is a foremost in their
treatment. Due to the injury, burn patients undergo a systemic inflammation that helps the
skin heal faster. However, several studies have shown that this inflammation increases the
levels of several inflammatory molecules that impairs skin growing, which further delays the
recovery of burn patients. As such, by inhibiting these inflammatory molecules with the
administration of a medication called pirfenidone burn patients might present faster rates of
skin growth and recovery. Thus, patients suffering from a burn injury will be recruited at
the emergency department of the Hospital University in Monterrey Mexico. Afterward, patients
will be randomized to either receive pirfenidone 600 mg orally once per day or usual care
consisting of covering the wound with hydrocolloid dressings. To assess the amount of newly
growth skin investigators will take a small piece of the skin to further evaluate it through
a microscope.