I'm always breaking out and I don't know y can it be eczema and how can I treat it?

Break outs. Acne? Eczema? See a dermatologist. There are so many different medicated creams that may help you. Once your examined, the doctor may have a better idea as to what condition you have.
Possibly. Breaking out could be eczema or acne or even herpes. Skin issues are difficult to diagnose unless actually seen. Best to see your doctor to confirm the diagnosis.