Recent Examples on the WebGenital herpes and syphilis are common STIs that present this way, says Dr. Khalil, but other infections such as scabies or pubic lice can cause a rash or extreme itchiness without ulcers. Alyssa Jung, Good Housekeeping, 17 July 2022 The disease is frequently called scabies and may cause extreme itchiness, redness, hair loss, and emaciation in extreme cases! Laxmi Corp, The Salt Lake Tribune, 12 July 2022 The drug, commonly used for livestock and pets in an animal-grade formula, is also FDA-approved in a human formula to treat parasitic infections and skin conditions such as scabies. Bysony Salzman, ABC News, 30 Mar. 2022 Ringworm, head lice, scabies, and hives can also occur on the scalp and cause dry, itchy skin. Cristina Montemayor, Men's Health, 31 May 2022 The drug, commonly used for livestock and pets in an animal-grade formula, is also FDA-approved in a human formula to treat parasitic infections and skin conditions such as scabies. Bysony Salzman, ABC News, 30 Mar. 2022 The drug, commonly used for livestock and pets in an animal-grade formula, is also FDA-approved in a human formula to treat parasitic infections and skin conditions such as scabies. Bysony Salzman, ABC News, 30 Mar. 2022 The drug, commonly used for livestock and pets in an animal-grade formula, is also FDA-approved in a human formula to treat parasitic infections and skin conditions such as scabies. Bysony Salzman, ABC News, 30 Mar. 2022 The drug, commonly used for livestock and pets in an animal-grade formula, is also FDA-approved in a human formula to treat parasitic infections and skin conditions such as scabies. Bysony Salzman, ABC News, 30 Mar. 2022 See More