Dryness, tingling, and foreign body sensation in the throat are clinical manifestations of acute laryngitis. Acute laryngitis (acutelaryngitis) is an acute catarrhal inflammation of the laryngeal mucosa, often secondary to acute rhinitis, sinusitis, and acute pharyngitis, and is part of the entire upper respiratory tract infection, or can occur alone. Sometimes shouting, excessive use of the voice, and violent coughing can also cause acute laryngitis. If it occurs in children, the condition is more serious. Examination and diagnosis of dry and prickly throat General systemic symptoms are not obvious, the lighter ones only have hoarseness, coarse, low and hoarse voice, which can gradually worsen later, even complete loss of voice, laryngeal pain and general discomfort, and individual patients may have fever and chills. Other symptoms are cough, sputum, dryness, tingling and foreign body sensation in the throat. Severe swelling of the larynx may also present with inspiratory dyspnea, but this rarely occurs in adults. The following symptoms should be differentiated from each other Dryness, tingling and foreign body sensation in the throat are the clinical symptoms of acute laryngitis. Acute laryngitis is an acute cicatricial inflammation of the laryngeal mucosa, often secondary to acute rhinitis, sinusitis, and acute pharyngitis, and is part of the overall upper respiratory tract infection, or can occur alone. Sometimes acute laryngitis can be caused by shouting, excessive use of the voice, or violent coughing. If it occurs in children, the condition is more serious. Zinc poisoning is mainly due to the application of galvanized utensils for the preparation or storage of acidic beverages, where the acidic solution can decompose more zinc to cause poisoning. Other causes are the misuse of medicinal zinc oxide (often used as an astringent) or zinc sulfate (often used in the treatment of conjunctivitis) or the absorption of zinc oxide (often a mild astringent or antiseptic powder) in large traumatic areas, etc. After the misuse of zinc salts, swelling of the mouth, pharynx and gastrointestinal cicatricial lips and vocal cords, abdominal pain, diarrhea, vomiting, and water and electrolyte disorders are seen. After zinc oxide fume inhalation, dryness and burning sensation in the throat, hoarseness or even loss of voice, metallic taste in the mouth, chest canker, etc. may occur.