DMSO Gel or Dimethyl sulfoxide Gel is well known for reducing the inflammation in the pet’s joints. It is also used for treating the areas where some kind of trauma or pain has occurred due to an injury. It s recommended to be given to both the horse and dog. DMSO comes in a colorless liquid form and is extracted out of lignin, a natural material which bonds and holds together the tree cells. DMSO is thus a non-synthesized organic product derived in the process of pulp manufacturing. However, it is processed further after extraction. The medication is FDA approved.