Because I have eczema and rubbing in various lotions, etc causes irritation to my hands I opt for towelettes. I bought through Avon Skin-so-soft bug guard plus. The package has 8 towelettes, says on pkg suitable for the entire family. Pleasantly scented, gentle formula does not need to be washed off when returning from the outdoors. Dermatologist tested, hypoallergenic.
You can apply every two hours. They are on sale now at Avon for only $5.99:
SKIN SO SOFT BUG GUARD PLUS IR3535� Active Insect Repellent Gentle Breeze� Towelettes
SAVE 50%!
price: $12.00 $5.99
Protects against mosquitoes and deer ticks for easy spot application where needed most. Convenient size fits in knapsack, luggage or purse. Self-close reusable bag holds 8 packettes (.3 fl. oz.; 5" L x 5" W).
http://shop.avon.com/avonshop/default.aspHopefully this will work out for you and your granddaughter.