mdortiz
Have you tested your pH level?
The itching (especially jock itch, also but not as common is ear itching), is symptomatic of a yeast infection.
Have you done the test for Candida? The home test where you spit in a glass of water?
While this test is not (IMO) 100% conclusive, it's a good indicator, because when I tried it and did Candida cleanse, the results of taking test again was 100% different.
(when I redid test, the water was completely clear and there was nothing more than light bubbles, which to me indicated the test + cure did something).
Low pH can be symptoms of yeast overgrowth (waste products are acidic), and / or the product of the standard "acid diet" of Americans.