Antibiotics such as Sulfa drugs, Cipro or Doxycycline may help if taken twice a day for 2 to 3 days. All unpeeled fruits are risky. Drink bottled water, carbonated beverages, beer, wine, hot coffee or tea. Boil or chemically treat drinking water. Avoid food from street vendors.
Restaurants are slightly less risky.
Food in private homes is the safest but each situation needs your evaluation. Consult a medical professional here or there if you have any questions.