I've been following this forum lately, reading back as far as four years. My dermatologist Deborah told me I have Grover's on my body (inc. arms and legs), i just thought it was atopic eczema (which I also have) or heat lumps. Anyway to cut a long story short, I bought some Cilantro / Corriander (UK) after seeing the recommendaion on this forum. I was eating a cup full a day for four days and my skin showed some signs of healing, BUT on the fifth day I doubled it up to two cups and boy did my skin react badly! My entire body and face went into a weepy itchy rashy mess. I will now avoid this in the future, alongside Celery and Fennel (the same family) and hope this is what has been causing my skin to be bad. I eat Celery in salads quite a bit. I have also stopped drinking milk eight days ago, in case it is dairy.
I googled it and 33% of adults are allergic to Corriander / Cilantro, so be careful!
I think it might have been the steroid cream healing the skin, and the hot water from the shower drying it up, rather than the Corriander.
My dermatologist (a different one, not Deborah) laughed when I told him about this forum, he said you can't get Grover's on your arms and legs, he has it and you can only get it on your back and chest. Wtf! It just shows you that these health proffesionals don't know everything!
Certainly not about Grovers.