Can I use rogaine even though I have seborrheic dermatitis on my scalp?

Yes you can,but it is better to use first a shampoo with ketoconazol to reduce the seborrheic dermatitis in combination with the rogaine foam preparation at 5%. The lotion will be too greasy for you. 

you can use rogaine for men 5% on your scalp even with the seborrheic dermatitis. It does not contain propylene glycol which may cause irritation.  It will not damage your hair, but when starting minoxidil you may experience an initial shedding as the hairs are synchronized, which is normal. You should be treating the seborrheic dermatitis with medicated shampoos as directed by a dermatologist. You can also have a consultation with a hair restoration surgeon to discuss your hair loss as well. 

yes, you can use rogaine even though you have a seborrheic dermatitis.But it is better to use it after cleaning the scalp well. it will not damage your hair