Cant garrantee this to work, but it should. Go to Walmart and buy a big can of cheap coffee. Buy some cheap panty hose or use the wifes at your own risk
. Cut panty hose in 10-12" sections, tie knot on 1 end, fill with coffee grounds, tie knot in top. Set several of these inside trailer, the coffe will absorb smells.
I used coffee to absorb bad odors in trailer when I drove a truck. Example picked up some bull hides hauled them from Fl. to Laredo Tx. Open the back door and the stench was fierce, after unload, had trailer washed out..stench was still bad. Spread out coffee grounds in trailer that PM, next AM, trailer was good to go.
My father in law had squirrels in the attic of his home, so he decides to launch handfuls of moth balls in attic. Squirrels left, but moth balls created a serious smell in the house, they were looking at having a Co. come out suck out insullation, then spray in more insullation. Told him coffee/panty hose trick, he threw in about 20 coffee bombs in attic...smell gone.
Worth a try. Paparika works too, but Coffee is alot cheaper.