At timestamp 54:30, Dr. Shawn Javid tells the story of a patient that was a lady from Arizona.  She had eczema all over her body for 20 years.  Dr. Shawn Javid found that she had dental cavitations.  Dr. Shawn Javid did dental cavitations surgery on her.  The patient said her eczema went away in about 1 month and never came back.

Dr. Shahin “Shawn” Javid, DDS and his brother Dr. Ben Javid, DDS in Los Angeles, CA, https://mysmilebody.com/