Propolis is the natural product of bees. It consists of various plant resins, balms, etheric oils and is enriched with the secretion of bee glands. Propolis is effective against bacteria, fungus and viruses. It is recommended for use against cold, infections of mouth, respiratory passages and throat, as well as disinfection of minor surface wounds or abrasions. If dissolved in water, it helps with stomach ache and ulcer.