Preventing and conquering the flu In short ... Catching the flu every winter is not inevitable. Although very contagious, influenza infection depends less on the strength of the virus than on the weakness and receptivity of the organic terrain. However, a land is all the more receptive when it is overloaded with toxins and deficient in nutrients. Different techniques of natural medicine such as nutrition, hydrotherapy and medicinal plants, make it possible to sanitize the ground and thus make it refractory to attacks by viruses. These will penetrate well into the body but they will not be able to survive there and trigger the disease. Fighting the flu therefore requires sound prevention first and foremost. But even once the infection is present, the use of plants, essential oils, trace elements and vitamins can help to shorten and alleviate the unpleasant symptoms of the disease.