Three months ago i spilled boiling hot water on me. a burn scar formed with hypopigmentation inside formed. how can i go about fading it?

Burn Scar: Your burn scar will probably fade and shrink somewhat over time, but, cosmetically, the result may not be ideal. You might want to consult a dermatologist or a plastic surgeon to seek advice on the best way to approach a satisfactory cosmetic result for you, whether it involves the uses of topical cremes or plastic surgery.

Time and avoid sun: Do you mean hyperpigmentation? If you want to fade it, it must be dark pigment (hyper - darker than your skin color) rather than lighter (hypo). Try to avoid sun exposure - the sun will darken any scar. Time will help it fade in color. There are scar preparations that are good for burn scars, like silicone sheets (www.Biodermis.Com) or silicone creams. These all help burn scars fade.