The document discusses various herbs and their effects on immunity, including ginger, garlic, licorice, mulathee, black seed, onion, cinnamon, and thyme. It cautions that herbs should only be taken with expert advice or knowledge of one's own constitution. Some herbal combinations mentioned that can boost immunity are ginger with honey, qust shereen, haldee sonf mulaithee, cloves and black seed, and black seed with honey.