How do I remove fish oil odor from an entire load of laundry?

I wiped up a spilled bottle of fish oil with a towel and foolishly washed it with the rest of my laundry. Of course, everything ended up smelling like fish oil. I tried using sol-u-mel, a solvent from tea tree oil, and it seemed to do the trick until I dried the load. Now they all smell really bad and it has been dried in. Is there any hope for this laundry? What can I do?