What reason is cough all the time

summary

Cough is a common symptom of respiratory tract, which is caused by inflammation, foreign body, physical or chemical stimulation of trachea, bronchial mucosa or pleura. It is characterized by glottic closure, respiratory muscle contraction, and elevated intrapulmonary pressure, followed by glottic opening and air jet out of the lung, usually accompanied by sound. What reason is cough all the time? Let's talk about it

What reason is cough all the time

Inhalants are classified as specific and non-specific. The former includes dust mites, pollen, fungi and animal hair; Nonspecific inhalation such as sulfuric acid, sulfur dioxide, ammonia chloride, etc. The specific inhalants of occupational cough include toluene diisocyanate, phthalic anhydride, ethylenediamine, penicillin, protease, amylase, silk, animal dander or excreta, etc. in addition, non-specific inhalants include formaldehyde, formic acid, etc.

The formation and attack of cough are related to recurrent respiratory tract infection. In patients with cough, there may be bacteria, viruses, mycoplasma and other specific IgE, if inhaled the corresponding antigen can trigger cough. After virus infection, it can directly damage the respiratory tract epithelium, resulting in increased respiratory responsiveness. Some scholars believe that interferon and IL-1 produced by virus infection increase histamine released by basophils. In the infant period, after respiratory virus (especially respiratory syncytial virus) infection, cough symptoms are also very common. Cough caused by parasites such as Ascaris lumbricoides and hookworm can be seen in areas with poor sanitary environment.

The phenomenon of cough attack caused by dietary relationship is often seen in cough patients, especially in infants and young children who are prone to food allergy, but it gradually decreases with age. The most common food causing allergy is fish, shrimp and crab, eggs, milk, etc.

matters needing attention

1. Strengthen exercise, more outdoor activities, improve the body's disease resistance. 2. When the climate changes, change clothes in time to prevent overheating or supercooling. 3. Take less children to crowded public places, less contact with cough patients, reduce the chance of infection. 4. Open windows frequently to circulate fresh air.