What is a long white Candle plus Doji:

Keep in mind that even after a doji forms, this doesn’t mean to automatically short. Confirmation is still needed. Wait for a bearish candlestick to close below the long white candlestick’s open.
If a doji forms after a series of candlesticks with long filled bodies (like black marubozus), the doji signals that sellers are becoming exhausted and weakening. In order for price to continue falling, more sellers are needed but sellers are all tapped out! Buyers are foaming in the mouth for a chance to get in cheap.