I had difficulty urinating twice within a week (urinating multiple times and in very small amounts, the episode lasted 2 hours)

It is important to consult with a healthcare professional if you have experienced difficulty urinating multiple times within a short period, especially if it is accompanied by other symptoms like frequent urination or pain. They can determine the cause of your symptoms and provide the appropriate treatment. It is not recommended to self-diagnose or self-prescribe antibiotics for a urinary issue without proper medical evaluation.