DMSO is generally used as a solvent. It can be used as a topical application to reduce acute swelling due to trauma. It is a natural product from trees that relieves muscle and joint pain, treats bladder inflammation and protects healthy cells from cancer and chemotherapy drugs. 

DMSO Gel assists temporarily reduce pain of large joints such as post traumatic soft tissue injuries, acute bursitis, strains and sprains. https://dmso.com.au/

DMSO's powerful ability to dissolve and carry anything with which it is mixed into the muscles, ligaments and blood can be an advantage when one wants to carry drugs or herbal extracts into the body through the skin.

DMSO has the unusual ability to depress the freezing point of water dramatically, while maintaining viability with many cell and tissue types. It is a sulfur-containing organic compound that is derived from MSM, and can be used internally or externally. 

Dimethyl sulfoxide (DMSO) is an organosulfur compound with the formula (CH3)2SO. It can uniquely provide solubility to certain very polar small molecules, such as simple biomolecules with multiple protic functional groups.