Is it harmful to take DR three times a day?

DR is actually X-ray shooting, but it is only digital conversion after shooting. With x-rays, it will definitely do some harm to the body. If it is really necessary, it is sometimes justified. However, the protection of other parts should be done well, and the hospital will definitely have protective equipment in this regard. You should ask the doctor for it. Under normal circumstances, occasionally X-rays do not do so much harm to the body, so don't worry too much. It's best not to shoot many times in a month.