ZincSelenium is a health food, not a medicine. It contains zinc, selenium and iodine, so its effects are mainly due to its main ingredients. It can be used for people with low immunity, as well as recurrent mouth ulcers, indigestion, skin impaction and map tongue. It should be taken orally according to the instructions, but it should be noted that if the child’s zinc deficiency is more obvious, it should pay attention to whether the oral dose is reached, and if necessary, it is recommended to take oral zinc supplementation drugs to treat, so you should pay attention to the dosage of it when taking drugs.