Australopithecus afarensis is one of the longest-lived and best-known early human speciesâpaleoanthropologists have uncovered remains from more than 300 individuals ! Found between 3.85 and 2.95 million years ago in Eastern Africa ( Ethiopia , Kenya , Tanzania ) , this species survived for more than 900,000 years , which is over four times as long ...
Contact dermatitis is a rash on the skin that can be itchy, painful, tender swollen and even blistered. Cradle cap is common for infants and causes thick, itchy, crusty, yellow or brown scales on the scalp. Symptoms of dry skin include scaly, rough, itchy, flakey, cracked skin, as well as chapped or cracked lips. Dandruff is a common condition that causes itching and flaking of skin on your scalp. A drug allergy is an allergic reaction to a medication and can cause a rapid heartbeat and difficulty breathing.
An allergic reaction can cause your scalp to develop dry patches that itch or burn. If you scratch, you can cause bleeding and scabbing. Your scalp should clear up on its own, but see your doctor if the area appears infected, is getting more painful, or is spreading.