If you have a dry and itchy throat and cough for more than a month, it is likely that the acute pharyngitis has become chronic pharyngitis or chronic laryngitis. If there is lymphatic follicle hyperplasia, it means that there is chronic pharyngitis or chronic pharyngitis. In addition, you also need to take some cough medicines for cough symptoms, such as dextromethorphan, relapsed methoxynamine or cough syrup. Another cause of dry and itchy throat and cough may be allergic cough, in which case you need to take loratadine to treat it and also go to the hospital to check allergens and avoid allergen exposure in order to treat the symptoms of dry and itchy throat and cough.