What is the treatment for people who have eating disorders?

They can either get a therapist or they can go to rehab for help there is also a way you could get some help by talking with you doctor
hope this is what you were looking for 

Definitely includes psychological counseling, a nutrition/ diet plan, and lots of weigh ins.

Inaccuracy is a disadvantage

If it's a smaller child or infant, place one on the middle of the chest and on the child's back. (if it is a bigger child with enough room for two, place one on the upper right/your left of the chest, and one on the lower left/your right) the pads should never touch each other.