I live at Laurel Lake, in the woods of Cumberland County, and after mowing my lawn for the first time this year, which included picking up a lot of brush near wooded areas while wearing shorts, have several red welts on my left leg, presumably from chiggers. I showered afterwards, and the welts began to appear the next day.
The remedy I use to relieve itching and to promote healing is NAC (n-acetylcysteine), available in capsules as a nutritional supplement. NAC is used as an antidote to various toxins, such as acetaldehyde (a hangover-causing metabolite of alcohol), methyl mercury, and to treat acetaminophen (Tylenol) overdose, so my idea is that it may be effective at neutralizing or detoxifying the digestive enzyme that the chigger secretes into the skin. In the body, NAC is a precursor to glutathione, an important cellular antioxidant, and that may also detoxify the chigger enzyme.
I take a capsule of NAC internally, and also open a capsule, mix the contents with a little water, and rub it onto the welts to relieve the itching. The grainy texture of the NAC powder provides an abrasive action that is similar to but more gentle than scratching, and the rubbing tends to work a small amount of NAC into the skin. This provides some relief and seems to promote healing. I also take vitamin C internally to detoxify and to promote healing of the skin.
So, if any other of you Pineys try this remedy for chigger bites, I would be interested to know the results.