Hi, Welcome to icliniq.com. I read your query and understand your concern. A root canal is the only option for a decayed tooth with pain unless it is fully damaged. Medication without treatment is temporary relief from pain. Again it starts hurting after a few hours or days.
Hello,Welcome to icliniq.com.According to your history, there may be an infection or secondary caries beneath the old filling. A small bubble on the gums means there is an underlying infection beneath the tooth called a periapical abscess. This can be ruled out with investigations.I suggest you get an X-ray (IOPA) done for those teeth.
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