Yellow-green phlegm is wind-heat or wind-cold

Yellow-green phlegm may be wind-heat cold or wind-cold.

Wind-heat cold is caused by wind-heat evil invading the body and lung qi losing harmony. Wind-heat evil enters the lungs, heat is accumulated for a long time, and the water and moisture metabolism of the lungs is blocked, thus forming turbid phlegm and yellow-green sputum. Wind-cold is caused by wind-cold evil invading the body and lung qi losing circulation. It is mainly caused by fear of cold and runny nose. However, if the patient is not treated in time or the treatment method is improper, the disease will delay, the evil qi will enter the lungs and heat will be transformed, and then the lungs will be invaded. Causes the water wet excretion to be blocked, forms the phlegm turbid, presents the yellow green sputum the symptom.