Book excerpt: Many common health problems can be treated with simple remedies you can do at home. Even if the steps you take don't cure the problem, they can relieve symptoms and allow you to go about your daily life, or at least help you until you're able to see a doctor. Some remedies, such as changing your diet to deal with heartburn or adapting your home environment to cope with chronic pain, may seem like common sense. You may have questions about when to apply heat or cold to injuries, what helps relieve the itch of an insect bite, or whether certain herbs, vitamins or minerals are really effective against the common cold or insomnia. You'll find these answers and more in Mayo Clinic Book of Home Remedies. In situations involving your health or the health of your family, the same questions typically arise: What actions can I take that are immediate, safe and effective? When should I contact my doctor? What symptoms signal an emergency? Mayo Clinic Book of Home Remedies clearly defines these questions with regard to your health concerns and guides you to choose the appropriate and most effective response.