Share 'Discoid Lupus Erythematosus'

Has anyone with Discoid Lupus Erythematosus had a biopsy done of your head sores. A friend of mine told me to have the sores on my head biopsied. I've had these sores for years and they flare when feel really weak and sick. Dermatologist years ago never knew what they were. I think they told me it was psoriasis. I need to have mine biopsied but I don't know what doctor does it. x0x0x Stacey