What happened to the itchy and painful face: First, if there is a recent travel situation, long-term sun exposure at the beach, consider the acute allergic skin reaction caused by sunlight, so there will be pain and itching. Second, if the long-term application of a certain ointment or a new skin care products and pain and itching, consider the drug or skin care products in a certain composition intolerance caused. If the face has red spots, papules or even small blisters, and there is itching and pain, the most common is eczema, eczema is an allergic skin disease, mostly related to eating some kind of intolerant food and bad stimulation, scratching or hot water after the skin barrier function breaks down and causes pain. Fourth, if the face has red spots, pustules and nodules during puberty, and there is pain and itching can not be ruled out as acne, acne is mainly related to hormone level secretion, more oil, acne bacillus infection and poor lifestyle habits.