Why do you get acne on your face? These glands make sebum, which is an oil that lubricates your hair and skin. ... Pores become clogged if there is too much sebum and too many dead skin cells. Bacteria (especially one called Propionibacterium acnes) can then get trapped inside the pores and multiply. This causes swelling and redness — the start of acne. What is an acne scar? Acne scars usually occur at the end of the skin inflammation or acne . The scars are caused by skin pores inflamed with excess oil, dead skin cells and bacteria. The pore swells, causing a break in the follicle wall. The infected acne destroys the solid skin tissue and this becomes a scar on the skin. So now that we understand what an acne scar and its causes; here are 15 natural home remedies to get rid of acne scars fast: 1) Tea Tree Oil: One of the most popular and effective home remedies for curing acne problems is tea tree oil. Tea tree oil is packed with antibacterial properties, which allows this essential ...