Instagram/@officiallymcconaughey

MATTHEW MCCONAUGHEY BRUTAL BEE STING!!!

Matthew McConaughey flew into some trouble after a bee stung him right in the eye -- or pretty darn close -- if his latest IG post is anything to go by.

As you can see, the actor's right eye is completely swollen shut ... looking bee-yond sore in the up-close selfie shared Wednesday.

MM captioned the pic "bee swell" to give some context ... but he didn't spill exact deets or if he's allergic to bees -- just enough to keep us buzzing with questions!

Nonetheless, the "Magic Mike" actor sported a smile and appeared to be taking it all in his stride -- though sharing the pic did seem like he was angling for some good ol'-fashioned sympathy.

And, Mathew certainly had fans buzzing with concern and praying for his speedy recovery ... but looks like he'll be alright, alright, alright!

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