Rub an onion on your dry, itchy scalp -- any harmful effects? Mild burning on the scalp?

Question

I rubbed an onion on my dry, itchy scalp. Stopped the itch, most of the dandruff went away, but had a mild burning on the scalp.

Answer 1

That's a new one. No, the onion can't hurt you unless you are allergic to them, and you would know that because you apparently eat them w/o problems. I keep my hair short to cut out the dandruff because most dandruff shampoos leave my scalp too dry.