The treatment of this disease with laser such as He-Ne laser, Nd:YAG laser, and CO$-2$/ laser, etc., has been applied in our country, but application of the semiconductor laser therapy has received few reports. It has many advantages, such as ting volume, steady function, simple operation (the patient can operate it by himself), no side effects, remarkable results, and it is very convenient. So the semiconductor laser can be used to treat the chronic pharyngitis with irradiation on acupunctural points. One-hundred-twenty chronic pharyngitis patients were divided into 2 groups, a laser group and a medicine group, 60 cases for each. The effective rate is 91.6% and 66.6%, respectively. Obviously the treatment of chronic pharyngitis with semiconductor laser is valuable for widespread use. The principle of the laser therapy is discussed in the last part of this paper.
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