question: hi Im mariafe, my boyfriend had experienced of vibrate pain in his lower back while he is straighten up and he feel uncomfortable, because wrong positon of lifting his auntie last sunday. And he's taking a medicine like multivitamins B Complex without checking up to a doctor...kindly help us the treatment to cure the pain... In his case,  he have an infection to his lower spine...? Have side effects in the future....?  thank you very much for the advice.