Posted 8/2/2019 2:28 PM (GMT -5)
I am so sorry. Is she willing to get rid of the moldy mattress? If so, have someone else wrap the mattress in shrink wrap and get it out of the house and away from the building.
Yes put your stuff outside in the sun. Wash everything in borax and hot water just before you leave there. If you drove, you may want to buy a plastic bin to put your stuff in or shrink wrap your suitcase after wiping it down. If you can get Everclear grain alcohol, you can mix 1 part Everclear with 7 parts distilled water. You can use vodka if you can’t get Everclear. Use that to wipe.
When you get home, put everything out in the sunshine for a while and re-wash anything washable in borax and hot water again. Keep everything out of the house until it’s washed. Then put those items in a place separate from your other belongings and watch how you react to the items.
Is there a neighbor you could stay with while you’re there who doesn’t have mold?