What is the cause of a constant dry cough with a tickle in the throat?

Always dry cough throat itch may be allergic pharyngitis, acute and chronic pharyngitis, acute and chronic bronchitis and other causes, if the symptoms are more serious, it is recommended to go to the hospital in a timely manner, and under the guidance of the doctor symptomatic treatment.
1. Allergic pharyngitis: This disease manifests itself in the form of itchy throat, foreign body sensation in the throat and dry cough. You can take loratadine, cetirizine hydrochloride and other drugs under the guidance of the doctor to improve.
2. Acute and chronic pharyngolaryngitis: inflammation for a long time to stimulate the pharynx, the mucous membrane in the throat area is affected, may lead to lymphoid follicle hyperplasia bulge, which leads to the old dry cough itchy throat, can be under the guidance of the doctor to use the iodine tablets, watermelon cream lubrication tablets and other drugs for treatment.
3. Acute and chronic bronchitis: acute and chronic bronchitis may cause the bronchial tubes to secrete a large amount of mucous material, and long-term accumulation in the bronchial lumen, the patient will have a reflexive cough, the symptoms of dry cough tickle throat.
Dry cough and itchy throat may be due to other reasons, please consult the hospital in time, and actively diagnosis and treatment. No smoking and alcohol in daily life, drink more water, eat more fresh fruits and vegetables.