Hello Dr My Daughter Is 10 Years Old She Has

Hello dr my daughter is 10 years old she has stomach pain and gastic problem she had food poisioning 15 days before i gave her antibiotic and other medicines after that when she was cured from vomiting she started complaining that she has stomach pain she burps and faats and also has feeling of nausea but constant lower abdominal pain so pls guide me i am really tense