IPL triggering hair growth?

I've (M) been doing IPL on my facial hair for a bit. The usual gap between sessions is 2 weeks but I went for a vacation recently so I had about a month between my two most recent sessions.

Before I left, my facial hair was actually pretty clear and there was almost negligible growth for that month. The day after my first session back, all (and I mean all) of my facial hair returned.

Not sure if it's a coincidence with my own hair growth cycle, but this isn't the first time that I've had a session, had good results (very slow growth and no five o clock shadow), but the day after my very next session, it all comes back.

Wondering if I should just keep going until it clears up totally or should I stop going after I hit a session that clears my face up to see how the hair growth responds