Hi,
sounds like me.. I'm in my 8th month on finasteride though.
i suggest using your nizoral 1% 2 - 3x weekly.. add a few drops of emu oil to your palm and mix it with the shampoo.. let it all sit on your scalp to soak in for about 5 - 10 minutes, then rinse with warm water and follow with a cold water rinse which will close your pores and cool your skin.
do this for a couple of weeks and if it doesn't solve your sensitive vertex issue, then add a good quality hydrating/moisturizing conditioner to your regimine, and apply it for a few minutes after every shampoo.
try using t/sal (salicylic acid) and/or t/gel (coal tar) shampoo in your regimine, or even head & shoulders (pyrithione zinc). Simply rotate them into the mix from time to time.. it's okay to experiment in order to find the products that work for you, just use them properly and you'll be fine.
you should also drop the folligen for awhile, isolate your use of products down to the essentials (nizoral & finasteride) and see if the folligen was the 'culprit' for making your skin sensitive, as it
isstrong stuff and can be more irritating than helpful for some people. i dropped using folligen spray from my regimine, as it didn't do anything for me.
emu oil can be found doing a search on google. i use DDM Wholesale brand and stand by it faithfully.
take care,
-mike