Dear Pediatric Guru, My son has been scratching his head and we found countless small white dots attached to his hair. Help!

What you discovered are nits (egg cases) from lice that have already hatched. These highly contagious critters transfer easily from one person to another. I usually recommend that they try the over the counter head lice shampoos first. The nits are usually cemented on strongly, but can be loosened with either lemon juice or vinegar…