Severe pain on the marked sopt.

ONLY BENGALURU DOCTORS & READ IN DETAIL I am suffering from CUBITAL TUNNEL SYNDROME and medicine TAB TRIGABAPANTINE100,.  0-0-1 SCAN and NERVE VELOCITY tests shown normal but physical examination said very mild ulnar nreve enlarged. NOTE I am also having IBSC so I can't take any mediCine having constipation side effect Now the issue is 1 week back I had constipation and affected by sudden NERVE / MUSCLE sprain when I applied to extra pressure to discharge the stool. After that sever pain is continued. since 2 days I am experiencing server pain like muscle tearing when I stretch my left hand in sleep. I am feeling pain whenever I touch the marked spot too. Due to lockdown I can't visit any clinic now. Please suggest a temporary medicine