Swirl marks on my car?

ok, i was washing my xcar, and i used the back of the dish scrub to get the heavy marks off, and i used the back of it , witch is the rough side, now that its drie , there white little swirls on my red car, when i apply water they go away, but when its dry they come back, did i destroy my paint, or casn i use a... show more ok, i was washing my xcar, and i used the back of the dish scrub to get the heavy marks off, and i used the back of it , witch is the rough side, now that its drie , there white little swirls on my red car, when i apply water they go away, but when its dry they come back, did i destroy my paint, or casn i use a buffer? please help.
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