Something stung me :/ ...

...some asshole ant or a very very small bug with little wings. But even as I blew on it to shoo it away, it kept stinging me. Now I have a walnut-sized yellowish-looking knot swelling under my skin. I am sure it didn't stung me with it's rear, so I doubt it's an infestation with some larvae or something (not the climate for it, but my imagination goes there soon enough), but whatever it injected hurts, itches and looks annoying. I also smell of garlic, as I medicate the swelling with half a clove. :/