Sadie's Sore Throat by Charlotte Cowan, MD, illustrated by katy Bratun

From chapters.ca:
In her story, Dr. Cowan empathizes with small children who are often confused about being sick and scared of going to the doctor. She writes with gentle humour and encouragement, showing children that there is nothing to be afraid of. Her story is as educational as it is entertaining and will provide comfort to both parent and child.