Good Morning Carrie. I read online that you can clean your skin & clothing with alcohol, even beer.. WOW wouldn't that be a hoot at church or pre-school...lol
Also our boys could just be down wind from the stuff and get it. Then it was my turn.. UGH.. We used the benadryl for the itching, and calamine lotion. Our eldest son just got over a really terrible case of it on his feet and legs. He is an electrician and it was by a building they were wiring. UGH.. He was miserable.
I betcha you could find a inexpensive coat some where until you can get his cleaned. Remember to use some gloves or something to place it in the washer and wash alone. Use COLD water. The oils from the ivies can and will get on other clothing and your skin for as long as a year.
(according to net search) Wish I had known some of this stuff when my boys were little guys.
My hubby doesn't seem to be bothered with it. So when our youngest son found it in his rental house's back yard, dad to the rescue and sprayed it three times before they got it all.
The net said if you go walking in the woods to be on the safe said wipe your cloths down with rubbing Alcohol when returning to remove the oils from the ivy, BEFORE going in the house. So tell Grams to carry some with her next time....lol
God Bless you Carrie, hope it all works out great for you.
Itching drives ya crazzzzzzzzy
K. Nana of 5