IRCT2016081726861N2 IRCT 2016-09-27 Vice Chancellor for research and technology of Kurdistan University of Medical Sciences The Comparison of the Effect of Lavender Essence and Chamomile Essence on pain severity after cesarean section - The Comparison of the Effect of Lavender Essence and Chamomile Essence on pain severity after cesarean section under spinal anesthesia: A blind placebo-controlled randomized clinical trial. 2016-02-04 anticipated 129 Complete https://irct.ir/trial/22158 interventional Randomization: Randomized, Blinding: Single blinded, Placebo: Used, Assignment: Parallel, Purpose: Supportive, Other design features: Random allocation is based on using the draw without placing a sealed envelope which contain number one, two or three. There are 129 sealed envelopes including 43 sealed envelopes contains number one for lavender essence group; 43 sealed envelopes contains number two for chamomile essence group and 43 sealed envelopes contains number three for placebo group. 2 pain. Intervention 1: Intervention group1: in the case of having pain more than 3 scales; from discharging recovery till 6 hours after surgery; two drops of lavender essence are poured on a ball of cotton and the patient is asked to inhale it. The intervention will be done just one time and the medical analgesics will be ordered If pain persists. Intervention 2: Intervention group2: in the case of having pain more than 3 scales; from discharging recovery till 6 hours after surgery; two drops of Chamomile essence are poured on a ball of cotton and the patient is asked to inhale it. The intervention will be done just one time and the medical analgesics will be ordered If pain persists. Intervention 3: Placebo group: in the case of having pain more than 3 scales; from discharging recovery till 6 hours after surgery; two drops of normal saline are poured on a ball of cotton and the patient is asked to inhale it. The intervention will be done just one time and the medical analgesics will be ordered If pain persists.