My 3 year old has been biting her nails for the last couple of months and it is driving me crazy! Any suggestions for helping a 3 year old stop? I saw something at Walgreens called Thum for nail biting and thumb sucking, but the first ingredient is cayenne pepper and it says will burn eyes if they rub their eyes, so I definitely don't want to try that. Any suggestions for other products or anything that is more natural?