The redness and burning sensation on the face may be caused by contact dermatitis, rosacea, urticaria and so on. 1. Contact dermatitis: skin contact with irritating substances leads to an acute or chronic inflammatory reaction in the local skin and mucous membrane contact area, resulting in redness, swelling, erythema, papules, accompanied by burning sensation and other symptoms. 2. Rosacea: abnormal skin immunity and vasodilatation function caused by autoimmune, microbial and genetic factors. Clinical manifestations include dilated capillaries, redness and swelling of the skin in the center of the face, accompanied by burning and stinging sensations. 3. Urticaria: Urticaria is a kind of skin allergy allergic reaction disease, drugs, food, contact with objects may be the trigger. Due to the expansion of small blood vessels in the skin and mucous membranes as well as an increase in permeability and a limited edema reaction, will make the onset of the site, itching, burning sensation, as well as nausea, diarrhea, chest tightness and other symptoms. When the face is red, swollen and burning sensation to the hospital dermatology department for consultation, according to the specific cause of treatment as prescribed by the doctor.