Pau d’Arco is best taken orally by chewing, which is more conducive to digestion and absorption. This drug is an anthelmintic, an over-the-counter drug, and should be avoided for long-term or excessive use due to potential neuromuscular toxicity in humans. It is important to avoid oily, spicy and cold foods to achieve the effect of deworming. Children who need to take worming medication should generally take one tablet at a time for children under 20 kg and two tablets at a time for children over 20 kg, just before bedtime. Because deworming drugs are the least toxic when taken at night before going to bed, and when taken on an empty stomach, the concentration of the drug in the intestines is the highest, which can improve the effect of killing worms. Levamisole-type insecticidal drugs taken with sugar water can not only improve the taste, but also increase the efficacy, which is quite effective.