All good advice. There is also a homeopathic remedy called - Pulsatilla - that if her conditions are right - works like a charm.
It's for thicker yellow/G. snot.
Get the 30c dose, rather then the 6c.
6c is supposed to be more for children, but I have found it not as affective. the directions say take 5, but 1-2 will suffice.
It's all natural and poses NO harm to try.
When my now 3 y.o. was about 10 months old she had the whole stuffy nose thing for a week+ and then got her one and only yeast infection. The Dr. wanted her on an antibiotic - which made no sense with the yeast infection - I spoke with a homeopathic doc. and tried this first - she was better in 1 day! It's all we've ever given our daughter.
Now my 4 month old just went through this and couldn't nurse to the point where he didn't gain weight for 2 weeks. The 6c dose (I went with it, b/c he is so young) didn't help, also his nose was more clear runny. That did need an antibiotic in the end. A week after it ended it started again (ahemm...3 y.o.sister and all!)
This time we went with the 30c dose and both kids were better in a day.
You can find it at most health food stores and it's about $7 for a bottle that lasts forever.
p.s. - try not to touch the remedy (they are little tiny round sweet sugar pellets)and dump it into your childs mouth - under their tongue is best, if possible - and it works for grown-ups too!!
good luck - and don't give up on nursing, b/c of a cold! Your milk will keep your child healthier then anything else.