I ended up with the last patch being on the inside of my left wrist, up to the elbow. Never! had such welts. At that point, Epsom water was too harsh. Plain old sea salt dissolved in water was the only thing that soothed. It came about as a last resort. All healed up now, except for some red bumps that erupted right at the wrist line. I think some blood vessels burst from the swelling? Something weird.
I don't have any experience with sulfur, but will go ahead with Diatomaceous earth treatment. We had a freeze one night since, so that got rid of whatever was there at the time. Devils.
This was the site I eventually favored for all things chigger >
http://mdc.mo.gov/nathis/arthopo/chiggers/Chiggers are not bugs or any other type of insect. Chiggers are the juvenile (or larval) form of a specific family of mites, the Trombiculidae. Mites are arachnids, like spider and scorpions, and are closely related to ticks.
Chigger mites are unique among the many mite families in that only the larval stage feeds on vertebrate animals; chiggers dine on us only in their childhood, and later become vegetarians that live on the soil.
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It is of little comfort to learn that North American chiggers only bite humans by accident. Although our chiggers can feed on most animals, they are really looking for reptiles and birds, their preferred hosts. The itching reaction human skin has to chigger bites occurs because we are not their correct hosts. Chiggers that specifically prey on humans in Asia and Pacific Islands cause no itching!
Unlike ticks, which quietly wait for hosts, chiggers run about almost constantly. Chiggers tend to move towards and onto any new object placed in their environment. You can test your lawn for the presence of chiggers by placing a black piece of cardboard or a white saucer. Vertically on the ground. If chiggers are present they will move rapidly over the object and accumulate on the upper edge where you can see them with a magnifying glass.