Don't You Feel Well, Sam? by Amy Hest, illustrated by Anita Jeram

From chapters.ca:
In the little white house, Mrs. Bear is putting Sam to bed, when suddenly - HCK HCK! coughs Sam. Mrs. Bear gets some syrup. But the syrup tastes bad, and there’s too much of it on a too- big spoon, and it’s too hard to swallow. What will make Sam feel better? Acclaimed picture- book creators Amy Hest and Anita Jeram revisit Sam and Mrs. Bear as they share a quiet moment of comfort that is enough to conquer the coldest night.