If the recent drop is due to weakness of Euro and the strengthening of USD, then the /DX shows that we have an opportunity to play the reversal.
On the Ichimoku Weekly Chart, /DX (or $USDX) shows that it is inside the Weekly kumo. In other words, the long term bullish trend have not been established yet.
In fact, this /DX rally might fail and it may goes back to bear territories (below the kumo).
The Ichimoku Daily Chart for /DX shows that today it is in a very good narrow trading range. Support at around 77.80 and resistance at around 78.2
One can easily choose a direction and use the other as a stop-loss.
My preference is bearish for /DX. In other words, I see USD weakening against other currencies.