Andrographis powder is poisonous, there is a certain volatile effect, it is not recommended to put in the room, so as not to cause chronic poisoning. Xionghuang is warm, pungent and poisonous, belonging to the liver and large intestine meridian, with the effect of drying dampness, expelling phlegm, detoxifying and killing worms, and intercepting malaria. The drug is poisonous and should be used with caution when taken internally; it should not be used for a long time; it is forbidden for pregnant women. Andrographis is mostly used in the clinic to treat snake and insect bites, carbuncles and swellings (qi and blood are congested by evil poisons and the onset of local manifestations of redness, swelling, heat and pain, pus, etc.), furuncles (a kind of poisonous sores, born on the head, face and the end of the limbs, the shape of the root of the small deep, the shape of the nails), worms, abdominal pain, malaria, epilepsy and other illnesses. Andrographis powder placed in the room, although it has the effect of killing and repelling insects, but if the room is not ventilated, andrographis powder volatilized into the air components, may cause chronic poisoning. And if the temperature is high, it may lead to denaturation and produce substances with stronger toxic side effects. Therefore it is not recommended to put it in the room, especially in the bedroom. The specific use of the drug should be under the guidance of a professional Chinese medicine practitioner, and should not be used blindly on its own, so as not to cause physical discomfort.