Tiny insects that spread through close contact, dirty clothing, bedding, or unsanitary environments are typically the cause of body lice infestations. Severe itching, particularly around the waist, armpits, and body folds, may result from it. Wash clothes, towels, and bed linens in hot water, let them dry thoroughly in the sun, take frequent baths, and wear clean clothes every day to manage it. Treatment may also be required for family members or close contacts, as well as anti-lice lotions or medications. See a physician or dermatologist for appropriate treatment if the skin becomes infected or the itching persists.