Should I Let the Dog Lick My Wounds?

This week - Will wounds heal quicker if licked by a dog?& Why does flying cause earaches?& How do gas masks work?& Why don't continuous rails buckle in the heat?...

15 July 2011

Presented byChris Smith,Redi Tlhabi.

Two dogs licking one another

Credit:

GNU1.2 - Adam.J.W.C.

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This week - Will wounds heal quicker if licked by a dog? Why does flying cause earaches? How do gas masks work? Why don't continuous rails buckle in the heat? Why do egg shells come in different colours? Dr Chris joins Redi to discuss all of these and more...