Hyaluronidase: how many treatments required to dissolve restylane lyft in tear trough?

I recommend following up with your injector. It takes a series of treatments to dissolve filler, but it's difficult to determine how many treatments you'll need. See an expert. Best, Dr. Emer

Dissolving fillers is possible but it can also be challenging, particularly in the tear trough areas.
It may take several sessions due completely dissolve the filler with hyaluronidase. I suggest following up with the person who performed the injections for a second look and if necessary, start the process of dissolving the filler. 

Dear bluke43,
Dissolving of fillers can be a challenging process.
Generally it may take several sessions due to the cross-linked nature of modern hyaluronic acid fillers, which are meant to make the fillers last longer.
Good thing is, they will improve with time. And pure hyaluronic acid fillers are completely absorbable.
Hope this helps!