EO-58 - Dill Seed Essential Oil - Sold in 1x unit/s per outer -Size: 0x0 (cm) From boosting the immune system to relieving muscle cramps, the benefits of dill seed essential oil are numerous. Spasms can be very irritating and, in extreme cases, can even be fatal. Spasms are cases of unwanted and abnormal contractions, whether in the respiratory tract, intestines, muscles, or nerves. Such spasm attacks can be pacified with the help of dill essential oil. It has a relaxing effect on nerves, muscles, intestines and the respiratory system and pacifies spasmodic attacks, providing quick relief.