Hi,
Thanks for writing your query.
I would like to reassure you that you that the pain in your right leg can be due to the injection and will soon subside.
You can do hot fomentation for relief.
I would also like to inform you that
steroid causes increase in blood pressure and
heart rate due to its vasoconstrictive properties and will subside as the effect of the steroid is finished.
You should get yourself clinically examined by your doctor for alarmingly
high blood pressure.
You can take painkillers like
Ibuprofen one tablet twice a day after meals along with an antacid like
Omeprazole 40 mg for relief from pain.
Any medicine to be taken under medical supervision only.
I hope this is helpful to you.
Thanks.