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It's incredibly important to buy pure aloe vera gel, so look for a bottle that states it is pure. With clean hands, dab a dot of the aloe vera gel directly onto your pimple. If you have a broken out area, you can rub the gel over a whole section of your face. Make sure not to touch your face as it dries.  Aloe vera gel helps to treat existing pimples and breakouts, but won't prevent breakouts. Use it to treat blemishes that pop up, but wash your face regularly to prevent them from occurring in the first place!  Because aloe vera gel is calming and decrease redness and inflammation, it's effective on cystic acne or any acne that is particularly swollen and red.  If you are prone to acne scarring, aloe vera gel is also a great option. It can expedite the healing process while blocking bacteria, which can help reduce the chance of acne scars. This is a perfect thing to do right before bed, so that the aloe vera gel can soak into your skin overnight. However, aloe vera gel is clear so you can certainly apply it during the day. Just make sure that you let the aloe vera gel sit on your skin for at least five minutes, or until completely dry, before washing it off. Do not apply makeup or other moisturizers over the gel. The aloe vera has anti-bacterial and anti-fungal properties, so it can help protect your skin while you sleep. Again, use lukewarm water to rinse your skin, and let air dry. The aloe vera gel should have decreased the inflammation and redness of your pimple, and it should be less noticeable. If your pimple was previously punctured or bleeding, the aloe vera gel will have helped skin regenerate and heal. Apply aloe vera gel to your pimples as often as you like. It’s most beneficial if you apply directly after a face wash or a shower.

Summary:
Apply the gel directly on blemishes. Leave the gel on your skin. Wash off the aloe vera gel.