Hi welcome to the health care magic There are many causes for gastroduodenitis like condition... Smoking,certain drugs, excess stress, smoking, alcohol, excess spicy foods, outside infected food etc can be the cause Hence clinical and detail drug history should be taken... If recurrent infection occurs than rule out h. Pylori by urea breath test... Avoid excess spicy foods and fatty meals Green leafy vegetables and fruits consumed more Avoid smoking, alcohol if habit Omeprazole drug can be taken for this Take care Consult physician for examination