Rubbing your eyes often will not make them smaller, because the size of the lid fissure is fixed after adulthood. However, if you rub your eyes often, it will easily lead to edema of the eyelid skin, and you will have the illusion in appearance that your eyes are getting smaller. You must develop good eye habits and eye hygiene in your daily life, and never overuse your eyes for long periods of time, or stay up late for long periods of time. If allergic conjunctivitis or common bacterial conjunctivitis occurs, the eyes will be very uncomfortable and many people like to rub their eyes regularly, in fact, the more they rub the more itchy they are, the more itchy they are, forming a vicious circle. The best thing to do is to go to the hospital in a timely manner and apply the correct eye drops so as to significantly relieve the symptoms of eye discomfort. In the case of allergic conjunctivitis, cold compresses can also be applied locally. Bacterial conjunctivitis can also be treated with eye drops, which are effective.