4-year-old baby with sinusitis through active treatment can generally be cured. 1.4-year-old baby sinus is not fully developed, pathogenic bacteria into the sinuses, especially easy to cause the nasal mucosa secretion increase, due to the sinus mouth sinus complex anatomical factors, resulting in secretion retention, the treatment of the main nasal spray medication, timely and standardized use of medication, the general condition of the recovery is good, you can achieve the effect of clinical cure. 2. But children suffering from sinusitis, a little bit of infection, it is easy to flow pus, nasal congestion, headache and other sinusitis symptoms, medication is more likely to recur after the cure, each attack, such as standardizing the use of medication, and with the age of the growth of the chances of recurrence may be gradually reduced, or even completely cured. In conclusion, sinusitis is recommended to consult a regular hospital in time and follow the doctor’s instructions for standardized treatment.