You should consult a doctor promptly to determine the exact cause. Acid reflux can irritate the throat and cause inflammation, but right-sided abdominal pain may indicate a more serious underlying condition, such as gallstones, appendicitis (if the pain is in the lower right abdomen), or an infection. In the meantime, avoid spicy, acidic, or fatty foods, stay well-hydrated, and take over-the-counter antacids or proton pump inhibitors for temporary relief of symptoms. If the abdominal pain persists or worsens, seek medical care without delay.