Thanks for writing your query.
Pus cells in stool indicate that there is some bacterial infection in your gastrointestinal tract.
You should get a culture and sestivity of your stool done to know the causative organism and the appropiate antibiotic for the infection.
You can add antiamoebic like Metronidiazole 400 mg thrice a day and some lactobacilus preparation for 5-7 days along with the antibiotic and antacid Omeprazole
Also take precautions in your eating habbits. Have home made foods prepared under hygeinic conditions. Also drink pure filtered water. Follow the habbit of washing your hands before and after meals.
I hope this is helpful to you.