Hi, I Had Tooth Infection (Premolar). Did 5 Days Antibacterial

Hi, I had tooth infection (Premolar). Did 5 days antibacterial course and now pain is gone. But still when I touch or press the skin above tooth it pains. I have to undergo RCT but since I'm abroad and will be back in 2 months, how can I prevent it till that time. No hot/cold sensation in that tooth. Dr. had inserted a medicine in that tooth and did filling.