Wan Hua oil can be rubbed on traumatic injuries, Wan Hua oil mainly has the function of activating blood circulation and removing blood stasis, soothing tendons and activating joints, reducing swelling and relieving pain. For some soft tissue contusion, or tendon sprain, or some chronic muscle strain, muscle aseptic inflammation caused by swelling, pain, or mild water and fire burns, rubbing Wan Hua oil can have a certain effect. However, it must be noted that if there is a wound bleeding, you can not apply kaleidoscope oil, because the kaleidoscope oil does not have the effect of disinfection. If there is a wound coated with kaleidoscope oil, it may lead to a wound infection. In addition, if the wound is bleeding and oozing, coated with kaleidoscope oil, the oil component inside will cover the wound, resulting in some inflammatory secretions can not be oozing out, but accumulate in the wound, but will cause the infection will be aggravated.