As nodgabnoj recommended, I would review all the posts here and check out the SkinCell forum too. What you’ll find is the following:
1) Supposedly Grover’s is exacerbated by heat and sweat — except for those that aren’t actually affected
2) Supposedly Grover’s is worse in the winter months but plenty of people have it in Florida and California where real winter is not a factor
3) Supposedly Grover’s is exacerbated by dry skin — except when it isn’t

Grover’s can be transient, recurrent, or persistent. Some people have been cured, or sent into permanent remission, (however you want to phrase it) by using a DMSA under doctor supervision, eating cilantro, avoiding gluten, avoiding grains, avoiding sulfites, taking vitamin A and D, etc.

I’m less inclined to think of this as a disease and more as a symptom caused by some environmental toxins (which, of course, are everywhere) and the body’s difficulty in addressing it.

In the West we are conditioned to think a) you get something and b) you then get a prescription to make it go away or manage it. And while that is sometimes true, I’d suggest it makes sense to look at things holistically and take a systemic approach.

1) What are your vitamin levels? What are your heavy metals levels? Do you have elevated inflammatory markers in your blood?
2) What is your diet and is it anti or pro inflammatory (sadly, there is no middle ground)?
3) What is your stress level and how much sleep to you get?
4) Do you come into contact with toxic substances through work?

Addressing all of the above will make you healthier but is no guarantee of a cure. The only thing I’ve seen, though, is that the long term solutions have only occasionally come from topicals or drugs. If it isn’t transient, systemic changes in lifestyle are likely the best way to address it and all of the anecdotal evidence points to that.

Granted, that is just my two cents.