Getting scratches on a car is amongst the many not-so-good experiences of owning a car, and they are almost inevitable in the long run. The severity of the scratch determines whether it needs professional treatment or whether you can handle it yourself, so first you must check how bad it is. If it’s a small scratch, then you can remove it yourself.
Wash the area first with water to remove any polishing wax or paint around the scratch which might spoil the paint you are going to apply. Use a fine sand paper to sand to the layer which the scratch has been made, taking care not to erode the paint any further. Put some paper around the scratched portion to isolate it, and then apply paint with even strokes. What is very important here is that you find the exact shade of color that is painted on your car; otherwise any mismatched paint can leave an ugly spot. The best way to select the accurate shade is to first find its number on the website of your car manufacturer, and then buying it from an auto parts store.
If severity of the scratch is less, then you might not even need to paint it. Some polishes have rubbing compounds added to them, which are sufficient to take care of the minor scratches. Before doing any of this check whether it’s really a scratch or just an external mark. A perpendicular rub with your fingernail on the spot is sufficient to tell you whether it is really a scratch or just something above the paint. If it’s a mark, you’ll be relieved of doing all of the above mentioned things. Finally, if it is a serious scratch then don’t try to treat it yourself. For best results take your car to the professionals.