Blood while passing stool. Travelling?

Hello, To give a brief I've a history of grade 3 piles which was resolved in June 2023. And since then never did I faced any blood in stool. However when I was on my recent trip to Prayagraj,Varanasi ie from 21st Feb- 26th Feb , suddenly on 25th Feb evening when I had bowel movements I could witness visible blood in stool. The next day ie on 26th, no such visible blood in stool. However on 27th, again I could see visible blood in stool and along with that I've abdominal pain as well. Regarding color of blood it's difficult to say as it was with stool dissolved in commode water so apparently it was bright red visibly. Can you pls let me know what home remedies I need to follow to cure this ? Is it serious ? Is it because of eating outside food when I was travelling ?