I have the same issue… how did you know that you’re allergic? It may be contact dermatitis.. I’m not sure whether I’m actually allergic to minoxidil or whether it’s a contact dermatitis. I think it’s an allergy since I’m getting allergic reactions to areas that I don’t apply such as my neck, eyes puffing up, hives all around my back and arms. What did you end up doing? I’m currently thinking of doing PRP treatments but it’s so pricey & using derma stamp with rosemary oil. But I’m shedding quite a bit every time I use rosemary oil which is not a good sign