Discovering that one child has head lice can be stressful, but it doesn't mean the entire family is automatically infested. The key is to stay calm, act quickly, and follow the right steps to prevent lice from spreading. Here's what every family should do when one child is diagnosed with head lice. 1. Check Everyone's Hair Carefully The first step is to examine every member of the household. Use a bright light and a professional-quality fine-tooth lice comb to inspect the sca