sweetie, i REALLY feel for you! i've only had welts a couple of times [i tend to sneeze non-stop or get migraines, not skin reactions] but it was SO unpleasant! & those weren't nearly as bad as what you've described!
i think, assuming the cute Russian doctor didn't find something else, that it's most likely related to the leaking, since that's the most obvious thing that's changed in your life.
i'd suggest some treatments, but you can't do anything right now - altho, for welts, itchiness, etc. i've found that cool [not cold] moist packs gave the most non-medicated relief. if you can stand it, a cool soak in the bathtub would probably help [with or without oatmeal or baking soda in the water - altho those would help, too (unless you're allergic to oatmeal!)].
i think, assuming the cute Russian doctor didn't find something else, that it's most likely related to the leaking, since that's the most obvious thing that's changed in your life.
i'd suggest some treatments, but you can't do anything right now - altho, for welts, itchiness, etc. i've found that cool [not cold] moist packs gave the most non-medicated relief. if you can stand it, a cool soak in the bathtub would probably help [with or without oatmeal or baking soda in the water - altho those would help, too (unless you're allergic to oatmeal!)].