At 34 weeks pregnant, it is common for women to experience back pain and sciatic nerve pain. Some ways to help alleviate these pains include getting massages from a professional or your partner, using pregnancy-safe creams for massage, and practicing gentle stretches or exercises recommended by your doctor or a physical therapist. It is best to avoid using Epsom salt baths or anti-inflammatory creams, as they may not be effective or safe during pregnancy. Always consult with your healthcare provider before trying any new pain relief methods.