There are vitamins and minerals that may help boost the immune system and therefore aid in healing. Many herbs may be used to calm the harsh cough associated with croup. Herbs Eucalyptus oil diffused into the room by adding a few drops to a humidifier or a cool-mist vaporizer may help to calm coughs. Ginger can possibly loosen mucus Chamomile tea may help soothe a cough and promote sleep. Vitamins Vitamin C may boost the immune system.
Vitamin A can potentially heal the mucous membranes.
Vitamin E may help destroy free radicals. Minerals Zinc promotes immune function.