Itchy face after washing can be seen in normal people, but also may be contact dermatitis, water hives and other diseases caused by, should consult a doctor in a timely manner, clear the cause of treatment. 1. Physiological conditions: normal people in extreme dehydration, excessive cleaning of the skin will appear after washing the face itchy face, such people should do a good job of daily hydration, generally without special treatment. 2. Contact dermatitis: if the patient in the face wash when using the previous not used face wash, and local redness, swelling, rash, accompanied by itching, stinging, should be considered to be contact dermatitis caused by such patients should be avoided again contact with allergens, and if necessary, can be used under the guidance of the doctor Benadryl and other drugs for treatment. 3. Water urticaria: in the area of the skin in contact with water, immediately or a few minutes after the emergence of the wind, accompanied by itching, lasting less than an hour. Itchy face after washing can also occur. There may be other causes of itchy face after washing, it is recommended to go to the hospital in a timely manner to identify the causes, symptomatic treatment, the above drugs need to be used in accordance with medical advice.