There are many reasons for a hot and itchy throat, including pharyngitis, laryngitis, and acute laryngotracheobronchitis. 1. Pharyngitis: Acute pharyngitis is commonly caused by viral infections in the early stages, followed by bacterial infections (e.g. Streptococcus pneumoniae, Staphylococcus, etc.). Common triggers include cold, excessive smoking and drinking, fatigue, external material stimulation (such as dust, harmful gases, etc.). Repeated episodes of acute pharyngitis and incomplete treatment can easily lead to chronic pharyngitis. 2. Laryngitis: acute laryngitis is an acute inflammation of the laryngeal mucosa. Its causes include infection (first viral infection, then secondary bacterial infection), occupational factors (such as dust inhalation and harmful gases by whitewash workers, improper vocalization by teachers and singers, etc.), traumatic injury (such as foreign body compression), too much alcohol and tobacco, etc. Acute laryngitis repeated episodes, delayed, easy to cause chronic pharyngitis. 3. Tonsillitis: mainly caused by Streptococcus pneumoniae, staphylococcus, adenovirus and so on. Common triggering factors include exposure to cold, excessive alcohol abuse, malnutrition, and low immunity. In addition to the above causes, the symptoms of a hot and itchy throat can also be seen in diseases such as upper respiratory tract infections. If the above symptoms are not relieved or are accompanied by other symptoms, you should go to the hospital to find out the cause of the problem and then give targeted treatment.