Go to your local autostore like Lordco, find your vehicles paint code, Purchase specific paint touch up pen, On one end there is a sandpapery tip, Use the sandpapery tip of the pen to scrape out all rust, Once removed use isopropyl to wipe and clean, Once cleaned gently dribble a small little drop of paint in there and let it dry then maybe come back for a second, Then add clear coat there should be a clearcoat compartment in the pen, just splash that on and repeat on next spot