My sugar glider has a worm?

so he was sleeping in my sock when i hear him sneezing alot and he like chirped, so i open the sock and i see a red worm coming out of his and he was eating it, so i take him out of the sock quickly then the worm had already went in. he keeps strectching and scratching himself and he is like gagging and he keeps biting things and me. help this is urgent i need some info on what it is and what to do? and its 1 am in the morning right now