I recently tried rogaine and it fried my head. After about 4-5 days of it… it caused my head to itch like crazy and a rash broke out. I heard that the foam is less irritating however the foam was worse for me. After I let the initial rogaine rash heal I tried the foam and that time it almost seemed like an allergic reaction because after only one application my scalp and even parts of my face developed an even worse rash that began only an hour after application! Is there any brand that I should give one more shot at? Have you heard this before??
I think your experience may suggest that you are allergic to Rogaine (minoxidil). Practically all medications can cause allergic reactions and it seems you have found what you are allergic to. I would consult with your doctor for other treatment options for balding, such as Propecia (finasteride) — if you are male.