Irritated skin can also be your body saying "help! I don't have enough zinc!" among other things, but zinc is one of the biggies. A veg/vegan diet high in fiber can increase zinc needs by up to about 50%.
A 20% ZnO s/s is very likely going to be highly whitening/visible on your skin and will offer little in the way of UVA protection (a ppd of approx 8 and not much more....while zinc offers a little protection across the UVA spectrum, it's so inefficient that the protection will never amount to much)
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All the best,
Katherine
Thanks a lot for your response Katherine. I've looked into everything you wrote. I strongly believe now that the persistent dry skin around my nose is due to Seborrheic Dermatitis. I looked it up and looked at the specific pattern in which SD manifests itself. Well, the dermatitis I have is in exactly the same locations, ie, where the sebaceous glands are. I'm amazed, is it an incredible fluke you mentioning SD?
I haven't a vegean or a vege diet but my maybe my diet is lacking in Zinc, I'm not sure I eat diversely enough, I do take fish oil though. I'm not taking a multivitamin but I will be doing so soon, perhaps that will help if their is any dietary cause for this. I'll find out for sure soon enough, I'm having a full blood assay done.
Re: The salicylic acid I think this is a great idea. I read up on this, and what I read assured me that it was useful in treating SD and pimples too with the inhibition of sebum which is really two birds.
Oh and I'm using a 0.05% tretinoin cream on my face every night and have been doing so for nearly two weeks. It's helped the dry skin and the occasional breakouts I was experiencing. I'm going to replace it with a 0.1% tazarotene cream, and intersperse application of the taza cream with tretinoin.
Thanks again.