This patient was bitten by a mite or bug called Chiggers or Trombiculid mites. They are also called berry bugs, harvest mites, red bugs or scrub-itch mites. The usual reaction to insect or chigger mite bite is a small itchy bump (papule) or a hive or even a blister. Chigger bites usually cause lesions that are often in a group and on the lower leg. They also occur next to elastic barriers on the skin from tight fitting clothing. They are therefore also found at the waist or near elastic waistbands. Other favored areas for chigger bites are close to the groin, behind the knees, or in the armpits where the skin is thinner. This patient had the rare bullous reaction (fluid-filled sac), seen with insect and chigger bites.
He was treated with OreganKnow healing ointment. More about treatment of chigger bites later.