How to deal with a child's runny nose for over a month

Patient's question:

Age
Detailed medical condition and purpose of consultation: How should it be treated?
Duration of current illness: Over a month
Current general condition: Constantly running nose
Medical history: Frequent colds
Previous diagnoses, treatments, and outcomes: Last month, I had a cold and fever. After taking Toen, the fever subsided, but then I took Xinbolin + Puerarin + Biluochun alternately, but I still constantly run a nose. Recently, red bleeding spots have appeared around my eyelids. How should it be treated?
Additional tests: None

Doctor's answer:

Hello! The natural course of upper respiratory infections in infants and young children generally does not exceed two weeks. If the child has not fully recovered after a month, and the original cold has not yet resolved while a secondary infection has occurred, it may indicate low immunity in the baby. In such cases, some immune-boosting medications can be used, such as transfer factor capsules and immunoglobulins. Additionally, daily life should focus on protecting the respiratory system.
There are many causes of respiratory diseases in children. If the child is diagnosed with a respiratory condition, parents need to cooperate with the doctor in timely treatment, including gastric decompression, and develop good hygiene habits. Parents should also be mindful not to let the child develop picky eating habits and ensure a balanced diet.