Not everyone even gets them, so they could go for another day, another week, a month, or it could quit tonight. It will probably subside within 3-5 days though.
I wonder why some people get them and others don't. Maybe it has something to do with the dissolved oxygen in there since it seems to happen during the start of fermentation.
I can't remember what exactly I did, I think I shook it all really hard in carboy to get a bunch of oxygen dissolved in it when I first prepared the brew, but all I got was a very slight apple/sour-apple smell around day two. Some people might even like that smell.
When I got the rhino farts I cooled my carboy down with the swamp cooler method. (sit carboy in tub of water, put shirt over carboy so it soaks up water, and hit it with the fan). This dropped mine down in to the low to mid 60's and my rhino farts went away within a few hours.