<prompt>  A 36 year old male patient has reported to you with swelling in the submandibular region. His tongue is elevated and he complains of dysphagia. He has high fever. Intra oral examination reveals grossly destructed lower first molar.CST culture sensitivity test is carried out to evaluateSeverity of infectionWhether the antibiotic dosage is adequateAntibiotic is most sensitive or least resistantTo decide when to stop the Antibiotics 