Since cosmetics themselves contain many chemical compounds, they can continuously cause chemical irritation to the tissues around the eyes, which may cause conjunctival allergy and allergic conjunctivitis. Seasonal conjunctivitis has an acute onset, the eyes are often red, swollen and itchy, and some people are so itchy that they can’t sleep, some patients may also have a foreign body sensation, burning sensation, tearing, photophobia and mucus discharge, etc. The symptoms are more pronounced when the temperature is high, so in the summer, the disease is more likely to “cause trouble”. Avoid eye makeup and eye creams during acute attacks. Unlike patients with perennial conjunctivitis, patients with seasonal allergic conjunctivitis have red, swollen eyes and discharge, but it is mostly aqueous mucous discharge and not in large amounts, whereas patients with perennial conjunctivitis have large amounts of purulent discharge. Although patients with seasonal allergic conjunctivitis are prone to photophobia and tearing, their eyes are not painful, they do not have visual impairment, and they are not contagious to others. How can I prevent seasonal allergic conjunctivitis? 1. Improve immunity through diet and exercise to alleviate the condition and reduce the frequency of attacks; 2. Avoid contact with allergens, such as pollen, cats and dogs, if there is a history of allergy; 3. Treat allergic rhinitis or bronchial asthma in a timely manner. ”Many people feel itchy eyes will involuntarily use their hands to rub, this practice is very bad, because the eyes are the finest and thinnest part of the human body, in the process of rubbing may damage the surrounding skin, causing inflammation and eyelid edema.” In acute attacks of seasonal allergic conjunctivitis, it is best for patients to go to the hospital for examination and standardized treatment under the guidance of a physician, and if allergic rhinitis or bronchial asthma strikes at the same time, they must be treated simultaneously. In addition, during acute attacks, it is important to pay attention to rest, especially for the eyes, to watch less computer, TV and cell phone, and to avoid overuse of the eyes as much as possible; also to get rid of allergens, such as stop using eye cosmetics, skin care products, stop wearing contact lenses and do not touch flowers, cats, dogs, etc.; you can also use cold towels to apply cold compresses locally and wear shading glasses to avoid strong light exposure.