Classification of vocal sand: Vocal sand is very common, but it is important to distinguish between benign and malignant. Benign vocal sand is commonly caused by excessive use of the voice, poor sleep or excessive spicy food. Lesions are acute and chronic laryngitis, vocal cord nodules, vocal cord polyps, papillomas, hemangiomas and other benign tumors. Malignant lesions are mostly seen in excessive smoking and drinking, family history, history of blood phlegm, etc. It can be laryngeal squamous carcinoma or adenocarcinoma, etc. In addition, laryngeal leukoplakia, keratosis, thick skin disease and adult laryngeal papilloma are precancerous lesions of the larynx, which can be transformed into laryngeal cancer if left untreated. Chronic laryngitis is suitable for laryngeal spray treatment: for teachers, salesmen and other long-term voice, such as the occurrence of vocal sand examination is vocal cord edema, in addition to the use of drugs, it is best to perform steam drug laryngeal spray treatment, it can greatly reduce the side effects of drugs and significantly improve the efficacy! However, some people feel that it is very troublesome to come to the hospital for laryngeal spraying. At this time, you can buy a home spray laryngeal machine at home, such as early sound sand can be their own home treatment. Home throat sprayers are not only used for the sound sand, but also for the initial onset of colds and facial skin maintenance. Long-term vocal fasciitis must prevent malignant changes: the following cases must prevent the deterioration of vocal fold lesions: men over 40 years old, vocal fasciitis for more than 2 weeks, after quitting smoking and alcohol, conservative treatment still no improvement in vocal fasciitis – must go to the hospital for examination as soon as possible. If the lesion cannot be detected by indirect laryngoscopy, fiberoptic laryngoscopy must be performed. If there is suspicion, a biopsy must be sent for pathological section, and blood test for carcinoembryonic antigen can be performed.