What should I do if a child still has chest tightness, chest pain, and cough after "Yangkang"? What should I do if a child still has chest tightness, chest pain, and cough after "Yangkang"? What should I do if a child still has chest tightness, chest pain, and cough after "Yangkang"? What should I do if a child still has chest tightness, chest pain, and cough after "Yangkang"? What should I do if a child still has chest tightness, chest pain, and cough after "Yangkang"? What should I do if a child still has chest tightness, chest pain, and cough after "Yangkang"? What should I do if a child still has chest tightness, chest pain, and cough after "Yangkang"? What should I do if a child still has chest tightness, chest pain, and cough after "Yangkang"? What should I do if a child still has chest tightness, chest pain, and cough after "Yangkang"? What should I do if a child still has chest tightness, chest pain, and cough after "Yangkang"? What should I do if a child still has chest tightness, chest pain, and cough after "Yangkang"? What should I do if a child still has chest tightness, chest pain, and cough after "Yangkang"? What should I do if a child still has chest tightness, chest pain, and cough after "Yangkang"? What should I do if a child still has chest tightness, chest pain, and cough after "Yangkang"? What should I do if a child still has chest tightness, chest pain, and cough after "Yangkang"? What should I do if a child still has chest tightness, chest pain, and cough after "Yangkang"? What should I do if a child still has chest tightness, chest pain, and cough after "Yangkang"? What should I do if a child still has chest tightness, chest pain, and cough after "Yangkang"? What should I do if a child still has chest tightness, chest pain, and cough after "Yangkang"? What should I do if a child still has chest tightness, chest pain, and cough after "Yangkang"? What should I do if a child still has chest tightness, chest pain, and cough after "Yangkang"? What should I do if a child still has chest tightness, chest pain, and cough after "Yangkang"?