-Pigmentation-dark patches in some areas of skin
-Erythema- abnormal redness of skin due to local inflammation
-Open comedones(blackheads)- Tiny dark bumps on the skin that look like dark spots.
-Closed comedones(whiteheads)- Tiny bumps on skin
-Papules-A small pimple
-Pustules- A small pimple containing pus
-Nodule- Painful hard lumps or knots under the skin
-Inflammatory acne- Skin condition that causes red, swollen and sore pimples.