I took an allergic reaction (massive face swelling) to hair dye almost a year ago after years of using this particular dark brown dye with no issues. I haven’t dyed my hair since and the greys are coming in thick and fast. I have carried out a few patch tests with dyes that don’t contain the PPD I’m allergic to and they have also caused slight irritation. I’m early 30s so I don’t feel ready to embrace the greying life yet. I was just wondering if anyone has been through similar and has successfully dyed their hair again? I’m very dark brown naturally.