The redness and itchiness around the eyes may be due to two reasons: first, wheals caused by a bacterial infection of the eye. In the early stages of wheals, due to the redness and swelling of the skin, there is also mild itching, but the itching is accompanied by a painful sensation, which is also different from the allergy situation. So once there is redness, pain or itching, you must use antibacterial drugs to inhibit the development of the wheals, if it is controlled at an early stage, most can still be suppressed. Secondly, red, mildly swollen and itchy eyes, without pain, may be dermatitis, allergy, or most likely eczema or hives, which can be treated by surface application of anti-allergic eye ointment, such as D&B eye ointment.