What Causes Frequent Urge To Urinate Along With Vaginal Itching?

Hi I have urgency in urinating and itching in vegina.... as well urination is frequent and I couldn t control it... I have a feel of pain in my soul when the urination stops... I went to a doctor and she prescribed me to have tablets Nuforce static , urispas, Allegra and syrup citralka for four days after breakfast and dinner .. I have ulcer and allergic to vomit tablets... do these tablets cause any side effects because of ulcer and allergic to vomit tablets....