You really can get candle wax out of carpet. It's not always easy, but wax can be removed with patience. Dyes from the wax are a different matter. Getting those out depends on what's in the particular dye. Start by scraping as much wax out of the carpet as you can, with a spoon. Afterwards, put an ice cube or two on the wax to freeze it, leaving them there for a minute. This should harden the wax enough to break it up and get more of it out. To get the rest of the candle wax out of the carpet.