Here's why:
* Serious Infection: That hole and the visible worms are a sign of a serious infection. The worms could be parasites, but there could also be other internal issues at play.
* Urgent Treatment: Delaying treatment could lead to sepsis (blood poisoning) or other life-threatening complications.
* Veterinary Expertise: A veterinarian can diagnose the problem, administer appropriate medications, and advise on the best course of action.
Please do not attempt to treat this yourself. Take your kitten to the nearest emergency veterinary clinic immediately.
Remember, time is of the essence when it comes to your kitten's health. Get her the help she needs right away.