#AskTheExpert My daughter is 15 months now. She doesn't have any teeth. we can see her lower middle gums are swollen and there is something white on the gum which appears to be a tooth. But it is still and doesn't seem to be erupting from the past 2-3 weeks. we are giving her Ossopand as per doc. could you tell us how much long does it take for teeth to erupt outside