Bollinger bands is the default indicator that is on mt4 / mt5 this indicator is very suitable to use when the market is in sideway conditions, the way to enter a position is when the candlestick forms the bottom line or the upper line of the Bollinger bands. This indicator is very suitable for scalping. but when the market is in an uptrend or downtrend this indicator is not suitable for me.
buy if the price reaches the Lower Band, and selling price compilation reaches the Upper Band.
simply like that for scalping.
However, in market trends, the trend of rising prices will continue to penetrate the Upper Band or Lower Band.
so you must be careful in using this indicator and always use stop loss to anticipate