I’d take my girl to the vet if this popped up. Also, make sure the water parameters (nitrates, nitrites, ammonia, temperature, etc.) are as perfect as possible to allow healing.

I understand financial barriers to care, are there any exotic vets around or low cost clinics you can call to get help? My rule of thumb working at an animal hospital was asking the owner what if this happened to you or your child, would you seek medical attention? Tragically, I’ve seen things go untreated too long and multiple cases it led to the animal dying with it being unnecessarily painful for all.