Regular use of disinfectant tablets is generally not harmful, excessive use of disinfectant tablets may irritate the skin and respiratory tract, and may irritate the gastric mucosa if taken by mistake. In general, the use of disinfectant tablets in the right way and in the right amount is not harmful. However, if not used in accordance with the instructions, if used in excess, a large number of disinfectant tablets dissolved in water, resulting in an irritating odor, may be inhaled through the nasal cavity of the human body, the human respiratory mucous membranes caused by damage, resulting in coughing, sneezing, runny nose symptoms. In addition, if the skin, such as the hands, is exposed to the disinfectant tablets for too long, it may irritate the skin, causing symptoms such as redness, swelling and burning-like pain. If disinfectant tablets are accidentally taken by mistake, they may also irritate the mucous membranes of the gastrointestinal tract, causing nausea, vomiting, abdominal pain, acid reflux and other symptoms. Therefore, before using disinfectant tablets, be sure to read the instructions and pay attention to the method of use to avoid injury.