Sound like some scurs coming up and maybe an infection on the other one. Without pics, cant be sure. Any idea how long ago they were dis budded? Would guess if they are 2.5 months then its been more then long enough for them to have dropped their caps and healed 100%. Not to mention that if they are growing scurs they most liked got dis budded at the right time but she just did a terrible job in which case the big bump isnt an infection just the horn base growing. Eventually a wide flat scur may grow out of it.