120
Participants
Start Date
March 20, 2020
Primary Completion Date
September 1, 2020
Study Completion Date
September 6, 2020
Warming patch
The warming patch can increase the temp of injection site, result in a blood vessels to dilate, which may have some contribute to decreasing injection pain.
Cotton patch
The Cotton patch will cover the injection site as placebo. It dose not have the function of heating comparing to Warming patch.
Zhiming Zhang, Chenzhou
First People's Hospital of Chenzhou
OTHER