Hi. Anyone had any experience of lo's with mouth ulcers? I'm assuming this is what it is, he won't open his mouth enough for me to have a good look. It's painful for him to eat, although he finds it easier after some paracetamol. He has a cough at the moment too, so I put it down to him just being a bit unwell, and getting a mouth ulcer, as I sometimes do. But this morning his cheek looks slightly swollen, and I'm wondering if I should take him to have it looked at or just wait and see if it gets better?