Suggest Remedy For Neck & Knee Pain

good morning.I am 50, heights 1.54, 55 kg.Have rhevmatoide arfritis more than 5 yers. I bin tryin all medication what is posible have from my doctor but thay give me lots sides effects and i deside give up all and take only vitamince i can. i have lots pain in my neck, sholders, my rists and knee. But i like to know what you will recomend for me to make me take pain away specialy from my neck.i try every day exersised, litle feel better but pain steel thear. pls help me . What i need to do...