A child’s forehead bumped a bag usually can not be rubbed, you can take the first cold compress, then hot compresses to relieve the way. Children’s forehead bump caused by the bulge, usually can not be rubbed, because the bulge itself may have blood vessel rupture, after rubbing, may aggravate the pain, resulting in an increase in the amount of bleeding, making the symptoms more serious. If the child’s forehead touched a bag, and there is no obvious wound, you can first carry out a cold compress, to promote capillary contraction, reduce the degree of local swelling. After the cold compress, pay attention to observe the child, if the child’s symptoms did not reduce, or depressed, drowsy, headache, should promptly consult the doctor. If the child’s condition is normal, after 72 hours you can take the hot compress, promote local blood circulation, accelerate the absorption of bruises, dissipation. When a child touches a bag on his forehead, he can consult a doctor and deal with it under his guidance. If there are obvious abrasions, you should seek medical treatment in time to avoid adverse consequences.