You have to wait till the abcess get burst on its own.
Till that take gandhaka rasayana 2 - 2-0-2 after food
Triphala guggulu 2-0-2 after food
Next Steps
Don't try to open yourself...
Health Tips
Go and consult your nearby ayurvedic doctor it will help you.. Drink buttermilk regularly.
For any query you can consult online. Thank you