How to relieve a stuffy nose in children

Patient's question:

Age
Detailed medical condition and consultation purpose: My son has been frail since childhood, with a low weight but acceptable height. Ten days ago, he had a cold, and after recovery, he has been like this. Watching him go to school, talk, and eat makes me feel heartbroken. Please help me, how can he be treated, how can he be adjusted? Thank you!!
Duration of the current illness: 10 days

Doctor's answer:

Hello, based on the description of the situation, it may be related to cold symptoms. It is recommended to pay attention to the following points:
1. Increase outdoor activity time
Research shows that children who frequently engage in outdoor activities have a significantly lower chance of catching colds compared to those who spend less time outdoors.
2. Dress appropriately
Avoid over-wearing or under-wearing clothes. Some parents worry about their children getting cold, so they dress them too warmly or excessively early, only to find that it often backfires and makes them more susceptible to colds.
3. Eat a good breakfast
A nutritious breakfast helps the body generate sufficient heat, which can enhance cold resistance.
4. Wash hands before meals and eating
Before eating, children must first wash their hands. When adults feed their children, they should avoid touching food with bare hands to prevent the spread of colds through food.
5. Maintain relatively stable indoor temperature
Large temperature fluctuations in the home can increase the likelihood of children catching colds.
6. Take measures after feeling cold
If a child feels cold or chills, they should immediately move to a warm room or a heated kang (traditional Chinese bed) to warm up. Drinking hot tea, soup, or milk is also helpful. If possible, ginger tea is even better.
7. Isolate immediately if someone in the household has a cold
If someone in the household has a cold, they should not come into direct contact with the child, especially not by sitting face-to-face or sleeping in the same bed.
8. Isolate children in daycare if they have a cold
If a child shows signs of a cold, they should not continue attending daycare or kindergarten. If multiple children are affected,