My eczema disappeared permanently after taking the B3 regularly over the last few months.
This eczema is something I've had for over 20 years. Previously it would only go away if I went starch free, and would return soon after eating starch again.
Initially, a few months back, I was taking B3 every time the skin problems worsened .. and found it worked very well at controlling it. Haven't even needed to take B3 for weeks now. I can now eat whatever I like and the eczema doesn't return!
Dosage: When taking the 100mg pills I settled on 700mg taken once or twice a day as being a nice and effective dosage. 1000mg was the absolute maximum, although I never had adverse reactions.