1999 Chrysler 300 Water leak

I have a water leak on my car and I don't have any idea where it's coming from.I have to fill my coolant reservior every day,sometimes twice a day.When I get somewhere and turn the car off it drips water for about 15 minutes and then stops.It drips water rapidly.i just need to know where to start with my repairs.I would like to know if it could be any of my hoses,my water pump,or blown head gasket.I don't have a water and oil mix at all,the smoke out the tailpipe is very clean.Is it okay for me to put stop leak into my car or will that damage me?Please help me,thank you for listening.