DMSO is a solvent. Years ago most bugs did not hatch within the human body because people weren't subjected to as many solvents as they are today. Parasite eggs just passed out of the body without hatching. Parasite eggs have an outer covering that protects them that is dissolved by solvents once they are ingested.
The body produces a certain amount of ammonia, anyway, but once you have an overaabundance of it from parasite metabolism, it's going to over-stimulate the adrenal glnds and cause the fight or flight syndrome--the body's defense mechanism that comes in to play when there is an emergency at times when there is no emergency. This is what is called a panic attack.
Toxic substances in the body result in mental depression when the body isn't able to detoxify them properly because it's overloaded or able utilize the proper nutrients due to the same condition.