What about smearing and lightly brushing the hammock with Orange (automotive) hand cleaner then soaking it in a 5 gallon bucket with a solution of Oxyclean and powdered laundry detergent followed by a clean rinse and hang dry?
Happy Trails to one and all.
Enjoy the outdoors wisely and elevate your perspective.
Modified Penny Wood Stove instructional Video-http://www.youtube.com/watch?v=0fPlHqsYy38
Hammock Wheel https://www.hammockforums.net/forum/...09#post1035609
Another Really cool JC Penny Puffer instructional- https://www.hammockforums.net/forum/...141#post953141
I would take it to the doctor for a shot
I can't tell you this is safe to use on your hammock - but for what it's worth:
I am highly allergic to Ivy, Oak, or Sumac and have learned a lot of things by trial & error over the years. I aways seek and follow medical advise from my doctor, but there are a lot of things I have learned I can do on my own to prevent outbreaks too.
I use a 50/50 mixture of Dawn dish liquid & odorless mineral spirits (add water to form a lather) to wash my skin and clothing to remove Urushiol. This has worked very well for me in avoiding breakouts as long as I am dilligent in keeping any exposed skin cleaned, sometimes this means washing up two or three times a day while backpacking.
Degreasing soap & mineral spirits are two of the ingredients in Technu. I find Technu also works well as long as I use it regularly to remove Urushiol, but it gets pricey.
Fels Naptha heavy duty laundry bar soap used to be great for removing Urushiol from skin & clothing, but I have been told that the effective ingredient, Naptha, has been removed. I have yet to verify that with the manufacturer, but I intend to.
I hope that may help, sorry for your suffering, I know it well!
I like to go solo - off trail - immerse myself in the area - explore - eat really well - and make it back home.