Hello doctors. This problem is about my mom aged 44. We tried a lot of medications but still she's not ok. She is in extreme pain till now.  We cant really understand what's wrong. The problem when asked she says that half of her left body part feels extremely burning sensation which leads her body to extreme pain. She says that she feels like dying. From her head till her toe the left side is in full pain and burning sensation. And now she has another problem of saliVa always comes in her mouth all the time which she is tired of spitting again and again. I need help. I don't have any idea which doctor to show this case. Please help.