We have heard, but not from the school itself, that there are cases of headlice in our children's primary school. Don't schools usually inform parents if there are cases? And shouldn't all the children be treated?

There's no need for you to worry. When everyone was informed, far too many uninfested children were treated unnecessarily, which eventually led to resistance to treatment products. It's easy to get rid of lice if you need to. Wash your child's hair as normal. Add a conditioner, then wet-comb from roots to ends with a normal comb, then repeat with a fine-toothed nit comb, wiping it after each go. The lice will be brought out on the surface of the comb. Repeat every other night for two weeks.

I roll my own cigarettes, and I have always believed that doing so lowers my risk of cancer, because it takes much more time to prepare them, and there is less tobacco in each cigarette. My doctor tells me this isn't true. What do you think?

I agree with your doctor. You probably smoke your cigarettes into a smaller butt than smokers of bought cigarettes. And Norwegian doctors have shown that people who rolled their own for years were more likely to develop cancer than those who bought cigarettes. You remind me of the people arguing about the best bit of the Titanic to hold on to when it was sinking. If you take tobacco into your body, you raise your risk of getting all sorts of diseases, regardless of how you do it.