Sebaceous hyperplasia is basically dilated or enlarged oil glands. They are deep under the skin, typically that requires a treatment that penetrates deeply into the skin. I have never found that acid works well for this and often leaves scars or the glands recur. Electric needle or fractionated laser (resurfacing or non-ablative Fraxel) are usually the best. Sometimes if you have many, isotretinoin can clear these completely without recurrence. I would suggest getting another opinion from a cosmetic dermatologist with experience treating this condition. I wish you the best of luck, Dr. Emer.