What is a temporary treatment for lasik flap dislocation?

No temporary fix. A displaced lasik flap needs to be properly re-positioned as soon as possible. A surgeon must put the flap back into its proper position. Many problems can arise if it is not done, including loss of vision and infection.
Reposition flap. If the flap is not in the correct position, it must be repositioned to put it in the correct position. Sometimes a bandage contact lens can help keep a flap in position.