After the ulceration of diabetic foot, if pain occurs in the foot, the following methods can be used: 1, improve blood flow: in addition to drug treatment, the main thing is intracavitary treatment, through intracavitary treatment can open the blood vessels, can improve the blood supply of the distal tissue. Blood supply past, not pass, pain, pain is not pass, so by unblocking the blood vessels to reduce pain, this is a method; 2, treatment through nutrition and regulation of nerves: for example, you can apply rat nerve growth factor, as well as zinc sulfate and other drug therapy, can also relieve the pain of diabetic foot rotten foot; 3, Chinese medicine treatment as well as local treatment is also a method to relieve the pain of diabetic foot rotten foot, first give clear, give Reasonable choice of internal medicine as well as external washing, soaking, etc. Chinese herbal medicine can play a better role in this regard, such as the four majestic Yongan Tang or Gu Bu Tang, which have the effect of clearing heat, relieving dampness and detoxifying the toxin, these Chinese herbal formulas can play a very good role in rotten foot pain.