Poor old Lewis had diarrhea for nearly a week recently, then I remembered back to the last bout of diarrhea that just wouldn't clear up. The doctor recommend giving him lactose-free formula for a few days to help clear it up. It worked a treat and then he went back onto normal formula.
But this time every time I tried to give him normal formula, the diarrhea would return immediately, and it had a horrid smell. So I suspected lactose intolerance. The GP agreed it sounded like lactose intolerance and referred us to a paediatrician, who confirmed this. Apparently it's fairly common for babies to develop lactose intolerance after an illness, and it's only likely to last until he's 13-14 months old.
Luckily, he likes the lactose-free milk, and can still eat yoghurt and cheese in small amounts without it upsetting his tummy.
