Dry mouth in the elderly can be alleviated by ensuring regular hydration, using over-the-counter saliva substitutes or moisturizing mouthwashes, and avoiding dehydrating substances like caffeine and alcohol. It’s also beneficial to use a humidifier in dry environments, opt for fluoride toothpaste to protect teeth, and consult with a doctor to review medications that might be causing dry mouth as a side effect. Regular dental check-ups and maintaining good oral hygiene are essential to address any potential issues arising from reduced saliva.