Cold cough and hot cough symptoms are different, cold cough tongue coating thin white, hot cough tongue red, moss thin yellow. Cold cough is a cough in the wind-cold attack on the lungs, manifesting as a cough, cough white sputum, throat itching, shortness of breath, often accompanied by limb pain, nasal congestion, headache, no sweating, runny nose, chills (cold) fever, thin white tongue coating, floating or floating tight pulse, you can use the San’ao Tang combined with the cough suppressant. Hot cough is a cough in which wind-heat offends the lungs (wind-heat evil Qi invades the lungs), manifested by frequent coughing, throat dryness and soreness, hoarse or coarse coughing, thick or yellow sputum, coughing and sputum is not refreshing, often accompanied by thirst, yellow sniffles, bad wind, headache, body heat, red tongue, thin yellow moss, floating or slippery pulse, you can use the Sang Ju drink. If coughing, it is recommended to go to the hospital, the above drugs need to be used under the guidance of a doctor.