Lymph nodes are closely related to cold and fever. After a cold and fever, many children will have small hard lumps on their bodies, which are actually swollen lymph nodes, generally, the back of the head, neck, behind the ears and other places are most likely to appear. The reason for the swollen lymph nodes is that the child’s immunity is greatly challenged during the process of cold and fever, and the lymphocytes are not strong enough to fight, so the lymph nodes will take the initiative to increase the lymphocytes to strengthen the body’s immunity, and the increase in lymphocytes directly leads to the swollen lymph nodes. When the child gets well from the cold and fever, the enlarged lymph nodes will not go down within a day or two, and it will take as little as a week or two and as much as a month or two to return to the previous state. Dr. Liu said that in addition to colds, other inflammatory conditions can also lead to swollen lymph nodes, such as a small wheals swelling after a child’s head has several swollen lymph nodes is also very common. Some children have stomach pains after a cold and fever, and ultrasound reveals that some lymph nodes in the stomach of these children are also enlarged. Second, there is no need to worry too much about small hard lumps within one centimeter. Recently, there have been a lot of children visiting the hospital because of sudden swollen lymph nodes. When many parents feel the abnormal lumps on their children, they often worry whether they are tumors. If the swollen lymph nodes on a child’s body are less than one centimeter, if there are no other adverse reactions, and if the hard mass has not changed very significantly recently, it should not be a big problem. If the lump is large, more than one centimeter, and grows rapidly in a short period of time, then it should be taken seriously and sent to the hospital for examination and treatment in a timely manner. For ordinary lymph node masses, such as those with a diameter of 0.3-0.5 cm, parents only need to pay close attention to observe them. Generally, as the inflammation in the body improves and the lymphocytes return to normal, the swollen lymph nodes will slowly improve, the size of the lymph nodes will return to the previous state, and the small hard lumps will slowly disappear. The lymph nodes will return to their previous state and the small lumps will disappear. Now is the high season of children’s colds, teach parents a few strokes of massage, do it at home for children, to prevent colds also have a good effect: 1, clear the lung meridian: lung meridian points are located in the ring finger ribbed surface. Operation, from the end fingerprints pushed to the fingertips, about 500 times, can complement the lung solid table. 2, rub the outer labor palm: outer labor palm is located on the back of the palm of the hand in the depression at the intersection of the 3rd and 4th metacarpal bones. Operation, press and rub this point 300 times. 3, take the Hegu: Hegu point is located between the thumb and index finger tiger mouth, with the thumb and middle finger ribbed surface force, relative force, take the child Hegu point, about 30 times. 4, open the door to heaven: with both thumbs ribbed surface, from the child’s eyebrows alternately upward, push to the edge of the front hair, about 50 times. 5.Push Kan Gong: Use both thumbs to push from the center of the child’s eyebrow along the end of the eyebrow to the tip of the eyebrow, about 50 times. 6, rubbing the sun: with the thumb or middle finger finger end to rub the end of the eyebrows after the solar plexus, 50 times each. 7, rub Yingxiang: use both thumbs with ribbed surface force, respectively, knead the nasal flank 0.5 inch, nasolabial groove in the Yingxiang point, about 1 minute. 8, take the shoulder well: use the thumb and the middle and index fingers with relative force, lifting the shoulder tendon shoulder well point, about 5 times. 9.Knead the tiantu: use the end of the middle finger to knead the tiantu point at the upper edge of the sternal notch, about 50 times. 10.Shu lung: hold the child’s chest and back with one palm in front and one in back, rub, shock and pat and push from top to bottom, about 5-10 times.