While the heat of Descendants of the Sun still on, i would like to promote United Nation Online Volunteer program. It is a great program for people who want to help and make the world a better place for the unfortune.
You do not have to be doctor or nurse and to be at the frontline. With a computer and stable internet connection, you can find many possibilities of helping grassroots organizations, international NGOs, local governments, educational institutions and United Nations agencies in addressing development challenges in United Nation Online Volunteer portal.
I am sure there will be a task that matches your skills and interest. Just browse through the opportunities page and look for a task that you are comfortable to accomplish. I am taking a website maintenance job for a NGO organization.