I take minox 1.25 now (increased from 0.625 two months ago, started in July of last year) and while I do have a lot of frizz, I feel like some of my worst thinning areas are not improving. I have 2 questions: 1) Would targetting those areas only with topical treatment for a short period help? 2) would I keep the hair when I went back to just oral minoxidil? I don't want to use the topical for long, my scalp is very sensitive to itching and burning. Thanks.