Acidic or alkaline chemicals that accidentally get into your child’s eyes happen all the time in everyday life. When these substances enter the eyes, they immediately cause different degrees of irritation, such as eye pain, burning sensation, tearing, and inability to open the eyes, etc. Chemical substances can cause serious damage to the eyes. Learn about first aid for chemicals entering the eyes in case of emergency. Chemical substances that enter the eye can cause blindness if not treated in time. In case of chemical burns in the eyes, you should flush your eyes immediately, preferably by immersing your head in water, opening your eyes, shaking your head, and flushing fully. Tap water is appropriate, as long as the water quality is clear, the amount of water is sufficient, any clear water can be used, the earlier the rinse, the more thorough the better, generally need to rinse 5 minutes. If the lime enters the eyes, one can not rub the eyes with hands; two can not be directly flushed with water, because the lime will generate alkaline lime and heat at the same time, improper handling will instead burn the eyes. In this case, cotton swabs or clean handkerchiefs should be used to pluck out the quicklime powder, and then rinse the injured eyes with water repeatedly, at least 15 minutes. After rinsing, you should also go to the hospital for examination and treatment.