DS is 15 months old.
He has been ill for about a week now, had a temp last Sunday, was a bit better on Monday, so sent him to nursery on Tuesday. Threw up at nursery, so was sent home, and has been generally irritable, with a temp since then. On Wednesday I noticed he had a couple of ulcers on his tongue, and his breath was starting to smell. I also noticed when I brushed his teeth on Wednesday morning, there was some blood on the brush, but I thought that he might have a tooth coming through and this was the reason for the blood. He has all of his molars.
Took him to the GP on Wednesday morning, and she checked his hands and feet and said the sores just looked like a viral infection (standard response IMO and feeling a bit fobbed off). Suggested coldsores, but GP reckoned not as she said she would expect his mouth to look more sore and it to be presenting on his lips. She gave us an anaesthetic spray, as he has not been eating, probably due to the pain. I have also been giving nurofen and calpol.
Today he has ulcers on the inside of his cheeks, 4-5 on his tongue, and a few on the roof of his mouth. His gums are red and swollen. He is so miserable with it all, and so am I! He also has a bit of a temp, despite calpol.
He doesn't have any sores on his hands and feet, but does have the odd spot (one on belly, one on leg which has nearly gone, and one on face that appeared today). In isolation I wouldn't think anything of the spots, they are nothing special, but I dont know if they are related? Also, for the last two days, I have had a really itchy rash on my feet and legs, which has been keeping me awake at night- don't know if this is related?
NHS Direct was a waste of space, told me it was a dental issue, and not to give him hard things like toast 
. Have booked another appointment at the Drs this afternoon.
He has had exposure to a couple of people with coldsores 8 days ago. To be honest, I will be pretty gutted if it is coldsores.