thanks for sharing your concern.
i can very well understand your situation but visiting a dentist
is necessary for you.your have clear cut signs of infection in your tooth.
an abscessed tooth should be drained as early as possible because it can lead to other space infections too.
meanwhile to reduce your pain and infection you can do this.
mouth wash after food.
2.rinsing with warm saline water will localise your infection.
3.after that very slowly with the help of your toothbrush try and remove the accumulated food particles and keep it maximum clean.
4.maintain very good oral hygiene
.this will help you a lot
5.take augumentin 625 mg for three days.also take tab combiflam
500 mg to relieve your pain.
after that you must visit your dentist for initial oral examination and abscess drainage