Iodophor and red potion poisoning reaction is skin redness and swelling, and even produce blisters, and in serious cases, it can also cause wounds pus. Povidone-iodine and red potion are more common topical disinfectants in life, but the two can not be used together, because the iodine in the povidone-iodine and red potion in the red mercury in the chemical reaction that occurs together, generating mercuric iodide, and mercuric iodide is a highly toxic substance, absorbed by the human skin after the toxicity of the reaction, the mucous membranes of the skin and tissues to produce a strong irritating and corrosive effect, so that the local skin redness, swelling, blisters, severe cases can also cause pus on the wound site. In severe cases, it can also cause pus in the wound area. If mercury iodide poisoning occurs, you need to immediately use sterile saline to flush, and then immediately seek medical attention to avoid accidents.