Hair Dye Allergy Caused Hair Loss — Will it Regrow?

Hello,
About 6 months ago, I started to dye my hair black (it is naturally blond – what can I say;) ?) Anyway, I’ve just discovered that I am allergic to PPD and have stopped using the hair dye. My now last treatment (which was a week ago and the reaction was really bad) has caused me to lose hair. Its not breakage, as the whole hair including the root, comes out. Its not what I would consider very severe as it is not coming out in clumps, but it is certainly very noticable, especially when I wash it as I have a nice size “wad” I have to take out of the tub.

Is this something, that hopefully, will subside soon, and what are the odds of that hair growing back?

Thanks for any help you might be able to offer

If you hair loss was from a local allergic reaction to a hair dye, then it should grow back. Typically, you will have to wait 3-6 months, but you may have to wait as long as a year to find out.