Can taking three goody powders at a time harm you? I m having excruciating pain in my lower back on my left side. Also on the same left side, am having pain in my groan area. It hurts to even put pressure on my left foot to walk. I don t know because am also having some leg pain as well. I did a lot of reaching and bending at work Thursday. Maybe I pulled a muscle or something. Goody Powders are the only over the counter medication that s helping. When I take three at a time it last for about six to eight hours. I don t want to harm myself but I need relief.