I'd bet they would regrow too. Are you dosing with anything to help the healing process?
I'd run the actinics only for a few days it wont hurt anything may even help some of the corals and the coriline realy like it. I do not run MH for reasons I have come acrss and seen. they also eat the power to much. T5HO work just as good and you can get bulbs that put out 20,000k, 14,000k, 12,000K, 10,000, 6,500K and actinics. I run a 4 bulb unit right now but have a couple single unit here also that I am continplating adding to the mix once the 90g is up and running. Right now I run 2 10,000K and 2 actinics. ever body is happy. the 2 extra lights will have 12,000K or 14,000K as the 90g is deeper and these will be on for 4hrs only at high noon. my actinics stay on all the time just the 10,000K are on and off except night no lights at all. If ick rears it head the 10,000K are on for only 2-3hrs high noon the rest of the day it is only actinics for 2 hrs at a time. I may go 2on 2off or 2on 1off depending what is happening. it doen't seem to bother the fish they get use to it. I call it bad weather days as tropical storms can last weeks.

I hope for the best for you nad your tank, speedy recovery.

Bill