The pregnant women with emesis gravidarum will be treated by transcutaneous electrical nerve stimulation on the P6 acupuncture point.

The pregnant women with emesis gravidarum will be treated with capsicum plaster on the P6 acupuncture point.

The pregnant women with emesis gravidarum will be treated by transcutaneous electrical nerve stimulation (TENS) on p6 acupuncture point for 30 minutes daily for 5 consecutive days.

It will be used to assess the severity of nausea (N), vomiting (V) and retching (R) for both groups before and after treatment.

It is an instrument consisting of eight 5-point self report items measuring the individual's perception of duration of nausea, frequency of nausea, distress from nausea, frequency of vomiting, amount of vomiting, distress from vomiting, frequency of retching, and distress from retching.

Its score ranges from 0 to 32. A score of 0 indicated no nausea, vomiting, or retching (NVR), 1-8 indicated mild NVR, 9-16 indicated moderate NVR, 17-24 indicated severe NVR, and 24-32 indicated the worst levels of NVR.

Nausea and vomiting of pregnancy (NVP) were measured and classified into three groups of different severity by using the 24-h Modified Pregnancy Unique Quantification of Emesis Scale (PUQE). MPUQE consists of three items that are used to assess the severity of NVP; the number of hours of nausea, the number of episodes of retching, and the number of episodes of vomiting within the last 24 hours. Each item has five options which are scored from 1 to 5 points. The MPUQE score is calculated by adding the values from each item which adds up to a total score that ranges from 3 to 15 points. The obtained total MPUQE-score was used to classify the severity of NVP into mild ≤6 points; moderate 7-12 points; severe ≥13 points.