Frequent redness and burning of the ears may be due to factors such as eczema of the outer ear, environment and emotional changes. 1. Eczema: When allergens appear in the outside world and stimulate the organism, an allergic inflammatory reaction will occur, and the skin of the ear will appear red, swollen, hot, and eczema, which is more common in allergy-prone people. 2. Environmental factors: If you suddenly enter a warmer environment from a cold one, your blood vessels will thicken and dilate due to the heat, which will lead to ear burning. 3. Emotional changes: emotional tension and excitement may lead to vasodilatation, resulting in redness of the ears. It is recommended that people who experience this symptom frequently should actively consult a regular hospital for a systematic examination and a clear diagnosis.