hey yall

I was washing my car yday and realized that theres about 8-10 spots on my car where the paint has started to come off...the spots arent big at all...its just baffling...cause the places where the spots are cannot come in contact with any surface while driving or otherwise.... its an 05 exL sedan btw....

the weird thing is i wash my car with a sponge...nothin like those big brushes that are harsh on the car..i use really good soap...(well atleast i payed plenty ~35 for a gallon)....

ive heard about the touch up paint that one can get from the dealer...how good is it? and is there any other way to stop it from happening further?