You should look for either 3 candles 'bulish' consecutive for a purchase, 3 candles 'bearish' consecutive for a sale ... and that's all. A formation of 3 white soldiers / 3 black crows.
forex strategies
Things to consider.
In the larger movements, the price will be re-drawn. The best thing you can do in this situation is that when you see that this happens (usually 1 or 2 candles in the opposite direction), simply close the transaction and re-enter when the price has returned to the point where the change began.
As an exit strategy - much of the time you can expect about 2 to 3 times the value of re-designs (for example, if the price retraces 10 pips, then you are viewing the re-entry operation a TP 20 to 30 pips).
You can use any 3 consecutive candles, but this works best when the price has just 'bounce' in Bollinger bands.
