Hello and thank you for posting your medical question on E health Forum. I am glad I can help you here.
From the history provided it seems that your daughter has seasonal bronchitis.
Bronchitis, a infection of the upper airways of the lungs (bronchi), It is common in winter and often develops following a cold, sore throat or flu.
The main symptom of bronchitis is a cough, which may bring up yellow-grey mucus. Bronchitis may also cause a sore throat, wheezing and a blocked nose
There are some things you can do at home to lessen the severity of symptoms:
1. Over the counter medications can help pain, fever and cough
2. A humidifier can help break up mucus
3. Give her lots of fluids - to prevent dehydration.
4. Make sure she gets plenty of rest
5. Keep her away from tobacco smoke
Bronchitis is usually a mild and self-limiting condition which clears up spontaneously within a week.
But if symptoms worsen, i.e. shortness of breath, or a fever that lasts more than four or five days, you might consider consulting a doctor who can prescribe antibiotics.
I hope this helps.