From a scientific point of view, there will be no such strange thing; From the superstitious point of view, that is, it will bring bad luck to the owner of the hair. This statement should not be established, because a wig is usually made up of many people's hair after disinfection. I suggest you check the hair quality of this shop, for fear that they are shoddy. It is full of chemicals, especially formaldehyde, which can easily stimulate children's breathing and cause physical diseases, and the skin of scalp and other parts will also be hurt if adults wear it for a long time.
It is recommended to go to the laboratory to test the hair material, and go to the hospital dermatology department to check whether it is infected or whether the scalp is stimulated. After the child has a fever, try not to distribute the leave indoors first to see the effect. After all, short-term physical diseases can be regulated by the body and drugs.