Fever and flu are very common seasonal ailments. They are generally caused by families of bacteria (such as those of coronaviruses) capable of causing bodily reactions when our immune system, for various reasons, is unable to work properly. These ailments can be of various nature and affect various organs of our body (respiratory tract, lungs, intestines, etc.). The treatment against these morbid states is generally related to the restoration of full immune function as well as the fight against viruses and pathogenic bacteria. Garlic and milk are particularly useful for this purposeonion. These two plants have in fact powerful antibiotic, antiviral and antiseptic properties and are able to effectively combat the bacteria and viruses that cause influenza as well as effectively strengthen our immune system, disinfect bronchi and lungs and effectively detoxify the ‘intestine. Even citrus fruit juices (lemon, orange and grapefruit) are a valid ally of our body during flu states since they have a powerful antiseptic and antibacterial action thanks also to their richness in vitamin C. If taken in the morning on an empty stomach they are a valid remedy to combat and defeat fever and flu. Herbal teas with a powerful purifying action are also very effective against the flu, expectorant and antiseptic. In particular , anise, echinacea, St. John’s wort, coltsfoot, elderflower, liquorice and nepeta are very useful . These herbs have the ability to decongest and disinfect the respiratory tract and effectively fight disease states such as fever and flu. They can be taken in herbal tea, also combined with other herbs with a powerful purifying action, to quickly decongest the respiratory tract and restore the functions of our immune system.