Can I take doxcycline and augmentin (amoxicillin and clavulanate) together, I already started the first med. I was prescribe both by two different doctors for two different issues.

Maybe. These two antibiotics can be taken together but you should let each of the two doctors know what the other has prescribed. It may be necessary to only take one. These broad spectrum antibiotics may create numerous complications with secondary infections. Be careful. Discuss with the doctors. I doubt both are necessary.