Is your baby gnawing on toys and biting at his fingers? He may be teething—an exciting step in development, but one that's sometimes painful, too, as his first teeth are emerging. Check with your pediatrician to see if she advises teething products, usually in gel or tablet form, which may relieve oral discomfort. Or, try giving your baby a chilled wash cloth to chew on. Also see homeopathic teething products.