Dr Bernadette Carr answers your questions on insect bites and gallstones

Dr Bernadette Carr says the best way to avoid insect bites is a combination of insect repellent and covering your skin. 

Q. I am a woman in my 30s and plan to go on a walking holiday in Spain soon.

On previous holidays I have got bitten by midges and my skin was very itchy. I want to avoid a repetition, what should I do?