red itchy bumps HELP

I have these really itchy red bumps that seem to be spreading on my inner thighs that popped up after my homecoming dance a few days ago. it is super itchy and seems to be filled with some sort of clear puss that scabs after popping. it seems to be getting worse and it very uncomfortable. if anyone knows what this could be or how to help it until my doctor appt. it would be SUPER appreciated. i’m starting to get some on my arms as well. (just for reference i already suffer from very intense eczema but this is NOTHING like it) needed sum real help from the girls