collant in the oil on 2003 Volvo XC90

I have a coolant in the oil. Every couple days my coolant level drops down, when I check the oil level was up.

Asked by for the 2003 Volvo XC90
Better get this checked and repaired soon. Hopefully it's just the oil cooler, but you could have a more serious issue like a leaking head gasket. If the transmission cooler is leaking, you could have issues with the transmission, so get it looked at soon!
Good Luck
1 more answer , 2 more comments
Is the oil looks milky and thick??

Little milky and very thin
Stop driving it and as Bret said get it checked out ASAP. If you keep driving it with coolant in the crank case it will definitely damage the engine.