Hello there, Welcome to HealthCare Magic Forum. For the pain in back you may take following Homeopathic medicines which are capable to reduce severe muscular pain in back. These medicines are safe and can be used for a longer duration without any side effects:- 1) RHUS TOX 200 Three times in a day. 2) ARNICA MONTANA 200 One dose every day at bed time. 3) MAGNESIA PHOS 6X Two times a day. You need not to stop medicines you are taking. Only you have to make about half hour gap between these medicines. If you are suffering from constipation, use any mild laxative. Do light exercise or the exercise advised by your Doctor. Get well soon.