So in short our toddler (20 months) hasn't eaten anything since Thursday morning breakfast time. (It's now Sunday)
He's drank his milk (when he can) and he's had some yoghurt but other than that he won't eat anything.
At first I thought it was teething as he has a bottom molar coming through but teething has never stopped him eating before.
Then I thought he had ulcers on his tongue but I can't see them either.
He's clearly in pain as when he's not dosed up on calpol / nurofen he's screaming in pain. He's done so much of that he's lost his little voice.
My question is how long can I leave him without eating? At the moment we're substituting food for milk