Dampness obstruction is one of the common clinical diseases of the spleen and stomach, which refers to dampness obstructing the spleen and stomach in the middle jiao, with the main clinical manifestations of general drowsiness, heaviness and lethargy, stuffiness in the chest and epigastrium, bloating and dullness in the abdomen, mucous and greasy in the mouth. Dampness from cold mainly manifests as dampness trapped in the spleen and stomach, i.e., dampness blocking the middle jiao, which is seen clinically: drowsiness and weakness of the limbs or head heavy as a wrap, chest tightness and abdominal distention, poor appetite, loose stools, mucous and light or sweet taste in the mouth, white and greasy tongue coating, moist and smooth pulse, etc.; dampness from heat mainly manifests as dampness and heat accumulation, which is seen clinically: chest tightness and abdominal distention, mucous and greasy mouth coating, thirst without desire to drink, red urine or low fever, yellow and greasy coating, moist pulse, etc. Because the manifestation resembles symptoms of the heart and stomach, many patients go to western medicine cardiology and gastroenterology departments and undergo a lot of tests, but no abnormalities are detected. In fact, for the treatment of dampness obstruction, Chinese herbal medicine can be used to regulate the symptoms without spending a lot of money.