Fever can be relieved with acetylsalicylic acid, present in different plants and trees in the form of salicylate, such as the bark of the White Willow (Salix Alba L). We have natural products in tablets or white willow bark preparations for infusions, the same ones that we could find directly in nature. Salicin extracted from white willow bark is converted by the body into salicylic acid. How to relieve fever with natural products