I suffered for 10+ years with Grover's disease and treated it (pretty well) with Kyolic Garlic pills (2 in the am, 2 in the pm - the Candida type). Finally my dermatologist mentioned she thought I might have a "yeast problem". I also had sebhorreic keratosis outbreaks and dandruff. I sent in a stool sample (you can get these kits from a Naturopathic Doctor or a Nutritional Therapy Practitioner) and indeed had a slight overgrowth (in my gut) of yeast. I took 2 weeks of grape seed extract pills (specific to the type of yeast I had) and haven't had an outbreak of Grover's or sebhorreic dermatitis since! And, I went off the Kyolic garlic pills. Seems hard to believe it's a coincidence, as I've been in saunas and have been sweaty many times since then. Highly recommend trying this! Good luck to you all!