Significant irritation of mucous membranes during normal use. A small number of people have allergic reactions. Corrosive gastroenteritis-like symptoms may occur with vomiting, vomiting blood, heartburn, and blood in the stool in oral overdose. Severe shock may occur. High concentration of iodophor may cause burns and ulcers on skin and eyes. Heavy allergic reactions may lead to laryngeal edema, asthma-like attacks or shock. If symptoms are not relieved or worsened, hospital consultation should be sought. After poisoning by oral ingestion, take large amounts of starch and rice soup, and pay attention to the prevention and control of laryngospasm and pulmonary edema. Give anti-allergic drugs and symptomatic treatment in case of allergic reaction.