Talk to Gynecologist on Gynaecologist

Aoa i had just delivered baby 20 days ago it was a normal delivery and all my stitches heal Alhamdulilah , on sunday i went some restaurant and bcz of ac i had a backache , as its my second baby and at first delivery it was a forcep delivery and epidural was given to me now from sunday bcz of sitting in ac room my backache is again started from a point where i was given epidural so need dr guidance as i am using hot water bottle what other can i use plz need dr guidance thanks