Allergic Reaction (S04E31)

S04E01 The Toy S04E02 Bloodline S04E03 Theodore's Calling S04E04 Clumsy Jeanette S04E05 Adventures in Babysitting S04E06 Alvin's Assistant S04E07 Mysterions S04E08 The Crow That Ate My Homework S04E09 Simon Says S04E10 Sing Like a Canary S04E11 Pirate's Life S04E12 World Record S04E13 Tour Bus S04E14 Game Show S04E15 Alvin Management S04E16 Time Capsule S04E17 Munk vs Machine S04E18 Shack Magic S04E19 Big Bro Theodore S04E20 Granny Awards S04E21 No Putts, No Glory S04E22 Sick Day S04E23 The Exchange Student S04E24 Crystal Ball Birthday S04E25 Artsy Smartsy S04E26 The Crush S04E27 Best in Shoe S04E28 Royal Pain S04E29 Between a Rope and a Hard Place S04E30 World Day S04E31 Allergic Reaction S04E32 Lice-enced to Teach S04E33 Animal House Party S04E34 Dr. Zap vs Electroboy S04E35 Mega Bounce Battle S04E36 Gossip Guy S04E37 Chimpmania S04E38 Dad Jokes S04E39 The Chosen Chipmunk S04E40 Double Dangus S04E41 The Last Day of Summer S04E42 The Littlest Robot S04E43 Of Mice and Munks S04E44 Simon Saves the World S04E45 Sick as a Chipmuck S04E46 You Troll S04E47 Life of the Party S04E48 Instant Gram S04E49 A Very Merry Chipmunk, Part 1 S04E50 A Very Merry Chipmunk, Part 2 S04E51 Unbored