Whenever I drop into a local pharmacy in Notting Hill, the staff look at me with huge sympathy. “Not again?” Yes, nits are doing the rounds again at my children’s primary school. I’m spending around ...

^pDear Doctor K:^p A child in my daughter’s classroom has head lice. What do I need to do if my daughter gets it? ^pDear Reader:^p Lice — the visitor dreaded by parents everywhere. Head lice are small ...