Rusty Rails

Ok now I'be started the bodywork I knot iced around the drip rails there's a small crack or separation of the drip sealant and small spots of what looks to be surface rust I' ll post pics in the am . How do I tackle this ? The car is a California car and has no rust issues that I can see .
I was thinking that I could hit it with a wire wheel and run a new bead but really not wanting to mess with the paint yet . Ant input veterans on what to look for it seems pretty solid .