Bronchitis improvement and sputum are relatively normal clinical symptoms, because bronchitis also exists in the period of sputum excretion, in the 3-5 days of full treatment of bronchitis will appear increased sputum, can also be called the period of sputum excretion. In the early stage of bronchitis, patients can have increased sputum, which is sticky and not easy to cough up. As the airway infection is controlled and the cilia resume swinging, the sputum secretion in the airway will be expelled with the treatment, and when the treatment goes further the sputum will become thinner and the amount of sputum will be reduced, which can also be called the recovery period of bronchitis. So don’t worry too much about the increase in phlegm when bronchitis gets better, continue active treatment, also pay attention to a light diet, don’t eat spicy and stimulating food, when bronchitis completely recovered the symptoms can be improved.