Causes of labial abscess
are from polymicrobial non -gonorrheal infection of the cyst
Rarely these abscess occur after trauma,episiotomy
or vulvovaginal surgeon.
Having these orgasm that you say cause trauma and if the squirts are not sterile, this can reinfect or have another abscess in the other side (if the abscess is not clear totally.)
Abscess have a higher rate of recurrence.
Take care of your self