hey surfbaby, no surfer or even ocean avi??You said after decreasing your MF from 3/day to 1/day, in just one day it reduced the itching of lesions on your scalp. In your 2nd post, you said on the second day with lower MF your rash disappeared. Usually Fred says to increase MF for skin stuff, but it seemed to be the opposite in your case. Maybe that's the difference between paradoxical folate deficiency and just taking too much? You also mentioned having to go up and down on your MB12 dose too before finding the right one. I have a lot of skin and hair loss issues like you, and one of your other posts about blood blisters in your mouth was the first time I ever heard of anyone else having them!
OK, I'm having trouble focusing my brain these days. I'm just going w/ the one paragraph that jumped out, that I think I can respond to. I'd have to do more searching to be able to respond about distinctions in the folate deficiencies. When I took, at separate times, before getting enough understanding, I was using folate w/o B12. That's when I experienced the head rashes. I recall that I had the same experience w/ B12 on it's own, but would have to go through too many notes to verify if this is true.
When I've been on both B12 and folate, my most immediate folate deficiency is hair loss, followed by various skin eruptions. The blood blisters was the most glaring symptoms, which finally put me onto the path of asking Fred, and then following his advice to increase folate 100-200mcg/day. Finally, I was on the right path.
Here's a thread that might be a better place for asking your questions. http://forums.phoenixrising.me/index.php?threads/thirst-for-mfolate-those-that-have-ramped-up.34764/
Here's another current one, problem-solving folate issues:
Blood blisters can be a mast cell symptom, I discovered. I have a number of mast cell responses, pretty benign compared to many people. Here are a few references I found at the time.
Summary of “The C5a Receptor on Mast Cells Is Critical for the Autoimmune Skin-blistering Disease Bullous Pemphigoid.”