Does cannabis have healing properties? The first thing we need to know is that the vast majority of drugs do not "cure". We take them because they can stop or slow the progression of the disease, help us relieve some of their symptoms, enhance beneficial effects or temper the harmful ones associated with other treatments. The extraordinary development of the internet and social networks has poured a series of claims, not always true, about the therapeutic effect that preparations from Cannabis sativa can have on the treatment of multiple diseases. It is therefore necessary for society to have the right information, especially those who put their hopes in "miracle solutions" in the face of the failure of the treatments to which they are being subjected.