Flushing out stress hormones is a new one to me. Many things cause stress but scaring them with a bulb exposition is a new one. (sorry could not resist the joke)

But the good news is I bet the flush did not hurt anything so no harm done. The most likely reason the bulb blew is water touched the hot bulb or there were fingerprints on the bulb that left behind oil or moisture of some type.

Trim off the burnt parts and save as much of the green as you can, give it another light bulb and treat it as normal. The burnt parts will not recover so just remove them and new growth should start soon around the same area.