Saffron is mainly produced in Tibet, due to the strong medicinal effect in the plateau area, saffron has the following two medicinal effects: 1, a relatively strong effect of activating blood circulation and removing blood stasis, which is stronger than the effect of general saffron, which is often called grass saffron; 2, saffron has a certain role in tonifying and nourishing the qi, just as Panax not only activates blood but also has the role of tonifying the qi. Saffron has a very strong power to tonify the Qi and invigorate the Blood, and is used for oral intake. Usually saffron is not used for soaking feet, soaking feet is not impossible, still can play the role of invigorating blood and removing blood stasis, legs with blood stasis can play a role, because it is not conducive to skin absorption, so advocate internal consumption.