You will be able to feel the doctor touching you while he is sewing up the cut, but it won't hurt anymore. He uses a needle and thread to sew you up just like your mom uses at home to sew buttons back on shirts. His sewing kit is very clean so that we don't get your cut dirty. You should also know that it is often necessary for children to be restrained in order to repair a cut. There is no discomfort with the restraint other than getting a little hot during the repair of the cut.
Children usually cry as a result of fright more than discomfort.
Most providers are willing to allow parents to stay at the bedside during the procedure if the parents desire this. You will find that the health provider in the Emergency Room will advise you if he or she feels uncomfortable in repairing a wound. A deep or complicated wound may need a specialist for repair. There is always a list of specialists on call for the Emergency Room who can take care of an injury when needed.