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You have to avoid the cosmetic creams or other cosmetics which may cause allergy
on your face. Wash your mouth three or four times in a day with water. Don't use excessive cold
or hot water. Itching may be at least partially controlled with the use of low-sedating antihistamines . You can use alovera, it will reduce the burning sensation of your face. Protect your face from direct sun light and dust. Avoid traumatizing the skin by keeping fingernails short and hands clean to avoid scratching and infecting the skin.
Wishing you a good health.