Can you use castor oil to reduce swollen lymph nodes?

Yes. Castor oil soaks can be helpful. But the real questions is what's causing the lymph nodes to swell? The most common causes are allergy, infection, cancer, and exposure to irritants/toxins. If you don't know what's causing the swelling, see a doctor to determine this.

Related Questions

Help please! Could castor oil over a swollen lymph node be dangerous?

Not at all. Lymphatic system absorbs/carries things too big to go into the arteries/veins like bacteria eaten by white cells and digested food. Lymph nodes "taste" the lymph for anything bad like bacteria/viruses/cancers, etc. When it detects a problem, it alerts the immune system and your body reacts. They enlarge in response to the inflammation created when they react. Castor oil will have no effect. Read more...