The Get Smart Web site at the Centers for Disease Control and Prevention (CDC) provides information for both consumers and health professionals on the appropriate use of antibiotics. The Web site explains the dangers of inappropriate use of antibiotics and gives tips on actions people can take to feel better if they have an infection that cannot be helped by antibiotics. Some materials are available in English and in Spanish.

The American Academy of Allergy, Asthma, and Immunology publishes an excellent series of pamphlets on allergies, asthma, and related information. It also provides physician referrals.

The American Academy of Otolaryngology—Head and Neck Surgery (AAO-HNS) is the world's largest organization of physicians dedicated to the care of ear, nose, and throat (ENT) disorders. Its Web site includes information for the general public on ENT disorders.

This website is sponsored by the Nemours Foundation. It has a wide range of information about children's health, from allergies and diseases to normal growth and development (birth to adolescence). This website offers separate areas for kids, teens, and parents, each providing age-appropriate information that the child or parent can understand. You can sign up to get weekly emails about your area of interest.

The National Institute of Allergy and Infectious Diseases conducts research and provides consumer information on infectious and immune-system-related diseases.