Doc McStuffins - Season 3 Episode 17
A Case of the Glitters

As Doc and the toys were playing Explorers the toys came down with a mysterious outbreak that is making the toys itchy. It was discovered that the toys had an outbreak of the glitters due to wearing Dress Up Daisys explorer hat after glitter was spilled on her, similar to head lice. Later even after being cleaned they are afraid to play with Dress Up Daisy and hurt her feelings in the process.