After washing the car yesterday, I was drying it and noticed a few chips on the drivers door that had bubbled when water had got in. They're pretty small, less than half the size of my little finger nail and I've never noticed them before so they must be relatively new. When the car had dried off, the bubbling had gone down, but the chip was there. Is there anything I can do to stop this getting worse? Will a simple touch up pen be enough to seal the chip as they aren't that noticeable normally. I just want to stop more water getting in and making it any worse.
Yesterday after I washed it:
After it had dried in the sun:
Yesterday after I washed it:

After it had dried in the sun:
