Hi..
Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand your concerns..
As per your complete explanation it is clear that you have a deeply decayed tooth and all the nerves that are present in the pump chamber are exposed as your tooth got fractured at the gum line causing nerve exposure and
severe pain..
To be short and clear such kind of fractured tooth should ideally be removed/extracted as saving them can be tricky and can lead to painful failures of the treatment..
There is flaring up of infection in your case leading to severe inflammation and it is causing swelling and pain..
As now the swelling has subsided it is the best time to proceed to get the tooth extracted and I would suggest you to consult an Oral Surgeon and get evaluated and he can take an
x ray to confirm the exact condition of the tooth and extract it followed by antibiotics and painkillers to relieve your pain and resolve infection..
Attempting
root canal further can not be a wise choice as your tooth does not look to be in a condition to be saved..
Hope this information helps..
Thanks and regards..
Dr.Honey Nandwani Arora..