Phase Three.  Use A few baking soda above the affected place.  Blend a quarter of a cup of three% hydrogen peroxide having a teaspoon of liquid dish washing detergent and drizzle this solution around the baking soda.  Alternatively, You can utilize a spray bottle to the hydrogen peroxide Remedy. Watch https://www.propanraya.com/id/produk/propan-paint-remover-ppr-730