Hi Jay! I'm sorry for your frog's hurting itself. First thing I would do is to look for any sharp decor in enclosure and remove it. Has this frog been moved to tank recently?
You can carefully apply a non-analgesic antibiotic like plain Neosporin, Bactrin, or silver based one. Can use a q-tip and lightly apply to pink area (maybe while frog sleeps) without getting it on nostril holes. That should prevent an infection and help wound heal. Good luck!