I would look for a prolonged uptrend or downtrend in the background before anticipating anything from these patterns.
It takes more than a candlestick to pick tops and bottoms. But surely candlesticks are an impeccable tool to provide high probability trades near support and resistance areas.
And yes candlesticks work on all timeframes. The confirmation is always preferred.
Higher timeframes are only to look for trend. We have to take position in the direction of trend but on a lower TF.