According to the CDC, there has been a 20.4% increase in calls to the Poison Control Center since this time last year. They could potentially react, creating toxic fumes, and could cause an explosion inside the drain! Vinegar and baking sodaWhile it’s not dangerous, placing the two in a sealed container can cause an explosion, since carbon dioxide is trying to escape. If you bleach a surface, be sure to wash off with water before adding on any other cleaners. If you do feel chest pain and shortness of breath, either seek medical attention, live chat with someone on www.poison.org or call the Poison Control Hotline at 1-800-222-1222.