In the chart above is an example of one of many Bollinger band strategies. This Bollinger Band strategy is when you are look for a long (bullish) entry. In the bottom left of the chart you can see price break above the Bollinger Band 20 SMA and pierce the upper band. The next bearish candlestick will be your signal and you will place a buy stop order a few pips above the wick for your entry. If price continue to drop just follow the same for the rule putting your stop buy oder above the lowest candle.