My 10 month old daughter has been congested for about two weeks. also, her stools have been loose when once before they were solid. is it teething?

Maybe,maybe not: The average infant is due for 5-7 respiratory infections & 1-2 diarrhea infections /yr until the age of 5. They also fill their mouth wit 20 teeth over the same period. Whether teething actually exists or is just used an an acceptable excuse is really just a mater of speculation. Even the decline in fussiness when they chew on a teething ring doesn't clearly answer that question.

See a Pediatrician : Teething should not cause congestion. If she is having thick phlegm coming out that is green or yellow, bring her to the doctor asap especially if the congestion had been going on now for 2 weeks. Her stools also indicate that her condition is no longer within normal limits.

TEETHING SYMPTOMS: Many infants show signs of distress during teething. The exact mechanism these symptoms occur during teething is not known, but the correlation of these stress symptoms with a tooth erupting remain high. Ibuprofen, cold teething rings and/or camilia can help. Good luck!

Teething: The loose stools are just a coincidence to be happening at the same time. Your daughter may be experiencing a virus or some other intestinal problem simultaneously.