A compound derived from a traditional Chinese herbal medicine has been found effective at alleviating pain.Working with Chinese scientists, Olivier Civelli and his UC Irvine colleagues isolated a compound called dehydrocorybulbine (DHCB) from the roots of the Corydalis yanhusuo plant. It has been found out after the test that this compound DCHB done on lab rats that it effects on diminishing nerve and inflammatory pain. These pains which are associated with tissue damages and infiltration of immune cells. This is important because there are no current adequate treatments for neuropathic pain.The researchers found that DHCB did not generate the tolerance seen with continued use of most conventional pain relievers, such as morphine