Sciatica

I had pain in my right hip for more than 3 weeks now.  I had the pain the following day after I nearly fall of my bike at Lorong Halus.  I had MRI done a few weeks earlier.  The report says my L4 and L5 are touching the nerve.  I must have aggravated the 2 vertebra and caused them to rub on my nerves every time I walk or move.  It is quite painful and at time debilitating!  I search the Youtube and tried many videos and this morning, I found one exercise that can give me immediate relief.  However, the pain came back after a few hours.  So I will need to stretch more frequently.