Sit hard chair time is long, the tail on buttock aches very much, how to do

Sitting on a hard chair causes pain in the tail of the buttocks. This should be caused by ischemia caused by long-term compression of the soft tissue of the tail. At this time, you can use local massage to relieve it, infrared therapy and ultrasonic therapy to promote local blood circulation. If the pain is serious, oral ibuprofen can also be used to relieve it.