6 months post lash loss from lash lift. Are they permanently damaged or could the follicle take a long time to heal? (photo)

Hello I had a bad lash lift last August which caused me to lose over once my long and full lashes (they didn't start falling out till over a week later) :( I have suffered chemical indicted blepharitis as a result. As some of these lashes are not growing back after 6 months is it safe to say they are permanently damaged or could the follicle take a long time to heal itself as apparently the lash lift chemical does not touch the root of the lashes? I'm devastated and only 20 too