My 19 month old has had mucus in his poo for the last two weeks and very soft poo. He was off nursery for a week with it and we sent a stool sample to the GP but haven't heard anything back. Has anyone experienced this before or have any ideas of what it might be? He had a milk allergy and we reintroduced him to dairy back in August so his allergy consultant doesn't think it's that and other than that, his diet hasn't changed. I weaned him off breastfeeding a few weeks ago but haven't heard that it makes much of a difference to their digestion. Would be grateful for any advice!