The root end is cut off upper 1st premolar. So presence of any periapical pathology can't be elicited
Depending on the depth and extent of secondary caries related to the restoration. It has to under go RCT.
Due to the covid pandemic, you can still delay for a month or 2.
But you need to be very careful with the tooth.you should eat any hard food at all, which may lead to fracture of restoration as well as the tooth structure.
AVOID HARD/VERY HOT/ COLD /SWEET/STICKY food.
Maintain soft diet.of normal temperature.
Brush thoroughly twice a day,after meal.
Use dental floss to avoid further food lodgement in between teeth 2-3 times/day regularly.
For the time being, do have these medicines prior to visit dentist,
T. augmentin duo 625, 3 times/day.after food 10 tablets.
T.metrogyl 400, 3 times/day.after food 10 tablets.
T.ultracet/zerodol PT, maximum 3 tablets a day, if pain,after food
T. Roles D,once a day, before food,for 4 days
T.A to z gold, once a day, after food,10 tablets.
If feverish, that can be as a secondary infection from tooth.
Next Steps
visit dentist and get RCT done after 2 months.
1-2 month's delay won't harm if the other precautions are well kept in mind and maintained accordingly.
Health Tips
do not do hot compression /balm/ointment application extra-orally.
avoid very hot/cold/hard/sweet/sticky food
soft diet
do not neglect brushing after meal.
hold mouthful of Luke warm salt water in for sometime; you can do it for few times a day, if it's relieving your pain, even partially.