Chicken pox mousse (TR7)

Our son has just got over his chicken pox and now we should all be done with it. We had bought this as an alternative to calamine lotion, but we have barely used half of the bottle. It was quite costly at £15 and it would be a waste to throw half of it away if someone else could use it. I know the bug is currently going around and this seemed to help soothing the itching.