After doing some research online, I have found several references to “Skeeter Syndrome”.  Seems to fit Mere’s reactions to mosquito bites.  Here’s a current photo of Mere’s arm.  It’s the worst reaction since she was hospitalized in Alabama.  Poor Kid.
Some links:

Mosquito Allergy
Reactions to Mosquito
Mosquito bite pathogenesis in necrotic skin reactors

Diamonds were this girl’s best friend
Lisle resident recalls her days with women’s baseball league
March 28, 2008
By Eva McKendrick

Just ask Lois Balchunas, who in 1949 played for the Chicago Colleens, an exhibition team with the All American Girls Professional Baseball League. Sliding into base is no big deal for your average ballplayer. [...]