Not really. In fact, an infrared thermometer is basically no radiation. In other words, it works via reflecting infrared wave length of heat dissipation from our human body.
PS: As long as you don’t irradiate the kid’s eyes, the infrared thermometer is quite safe for them. In addition, if a kid is no more than one years old, you can try to use this infrared thermometer; While over three-year-old kids, the mercury thermometer is another good choice.