The Method Of Clearing Heat
In Chinese medicine, clearing heat means to clear and sedate the pathogenic heat for various kinds of deep and hot symptoms; clearing heat can also be used to treat deficiency heat or superficial heat. However, in clinical practice, a distinction must be made among the different types of heat, including energy heat, blood heat, yin heat, toxic heat, dampness-heat, heat in the internal organs, excess heat and deficiency heat. For instance, enerrf heat and excess heat should be treated by clearing heat and sedating fire at the same time, blo d heat should be treated by clearing heat and cooling the blood at the same time, yin heat should b treated by clearing the heat and nourishing the yin at the same time, toxic heat in excess should b treated by clearing heat and counteracting toxic effects at the same time and heat in the internal or ns should be treated by treating the organs involved.
To clear heat and sedate fire
Basically, this means treating energy heat, which normally displays the following symptoms: high fever, thirst, dry tongue, yellowish and dry coating of the tongue and forceful and rapid pulse.
To clear heat and cool blood
This involves treating blood heat, which normally displays the following symptoms: high fever, mental confusion, delirium, deep-red tongue and bleeding.
To clear heat and counteract toxic effects
This involves treating various types of toxic heat, which usually displays the following symptoms: red swelling, fever, pain, pustulation and decomposition. Toxic heat includes the diseases caused by an attack of external energies, with such sy~e throat, ulcers, vomiting of blood, nosebleed and delirium, all of which belong to the hot syndrome.
To clear heat in the internal organs
This involves treating heat in the internal organs that display various symptoms. For instance, excess heat in the heart meridian will give rise to feeling depressed, thirst, ulcers in the mouth and on the tongue, short streams of reddish urine, difficulty in urination and pain on urination; excess fire in the liver meridian will give rise to pain in the upper abdomen, bitter taste in the mouth, pink eyes and pain in the eyes, wax in the ears, urinary straining, ulcefs' in the genitals and red swelling of the scrotum; heat in the lungs will give rise to cough and asthma; hot stomach or heat in the stomach will cause bad breath and swelling and bleeding of the gums, all of which may be treated by this method.
To clear heat and transform dampness
This involves treating dampness-heat, which generally displays the following symptoms: intermittent or prolonged fever, congested chest, abdominal swelling, sticky sensations in the mouth, nausea, poor appetite, reddish urine, watery stools and yellowish and greasy coating of the tongue. The same method can also be used to treat a syndrome called dampness-heat turning into fire, which generally gives rise to dysentery, jaundice, hot urinary straining, or discharge of yellowish fluids in skin diseases.
To clear heat and lubricate dryness
This involves treating three syndromes:
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- the lungs-dryness syndrome, in which dryness impairs the lungs and the stomach, causing dry throat, thirst and dry cough with scant sputum;
- the hot syndrome, particularly at its later stage when both energy and yin are impaired, causing such symptoms as dry mouth, mental depression, hiccups and poor appetite; and
- the deficiency heat syndrome, which gives rise to such symptoms as hot sensations in the body as if they were coming from the bones, periodic fever, night sweats, or persistent low fever.