Diatomaceous earth can be good for people too! improve digestive health bowel movements more regular detoxifying cholesterol reducing clearer skin improved dental health stronger and healthier nails and hair reduce arthritis, join and muscle pain help with skin conditions like burns, bites and rashes help control Candida levels. Diatomaceous earth, or DE, was "discovered" in Germany in the 1830s by a farmer who was digging a well. One accidental benefit at the time was the farmer mistaking it for limestone. ... Diatomaceous Earth promotes healthy skin, soothes itchy skin, rashes, burns, insect bites, and bed sores . It is used as a treatment for abscesses, eczema.