Cold and flu remedies focus on natural treatments that help alleviate symptoms and support the immune system during illness. These remedies often include herbal teas, such as ginger, echinacea, and elderberry, essential oils like eucalyptus and peppermint for decongestion, and supplements like vitamin C, zinc, and probiotics. They aim to reduce fever, soothe sore throats, relieve congestion, and boost recovery without the use of synthetic medications.