1. Ice Cube.
Acne scars are made up of or caused by inflammation through heating and sweating, which causes the multiplication of spots by opening up of the skin pores while making it more susceptible to the bacterial and fungus reaction through dust and air moisture. So rubbing ice cube on the spot is the best natural way to get rid of acne scars when repeated even after the acne got healed for another week or two. Alternative to ice cub is using a very cold water directly rinsing the area for 20 minutes 4 times everyday until you got cleared the acne and acne scars.
2. Olive oil.
Olive oil is the first remedy I will recommend in a hundred questions of how to get rid of acne scars overnight at home. It isn't only a home remedy to get rid of spots but a natural skin moisturizer and cleaner that can keep your skin shining as long as you keep applying.
Some people mix olive oil with artificial creams but talking about home remedies to get rid of acne scars, it is more important to stay natural than mixing hard substance on your skin that may cause irritation or even worsening of the situation. Do not rub olive oil on sweat, instead wash the face with mild soap, clean dried with a washcloth and rub the olive oil massaging the skin a little to get it into pores. In some other parts of the question, you can use warm water sprinked on the skin for a minute to open pores and immediately rub the olive oil in order to see immediate or fast effect.
Other alternatives home remedies to get rid of acne scars fast that work similarly with olive oil are aloe vera gel, coconut oil and cocoa butter. All should be used in a sense of knowing what your skin likes and avoid mixing two. If you have to combine two at the same time to get rid of acne scars fast, you should reduce the dose. Instead of 4 applications daily, it should be two or 3 with separate measure. Olive oil can be mixed with coconut oil as daily cream in order to get rid of acne scars.
3. Fresh Lemon Juice.
This is also one of my favourite home remedies to get rid of acne scars. Lemon juice has some properties of skin cleansers and conditioners which helps alot in fading away blister spots as well as acne scars.
For easy use, you can just squeeze the fresh lemon juice all over the acne scars after each bath. Leave it to stand for 2 hours and wash the face thoroughly. If you are like me that love to see every work done in the minimum possible time, then you should wash the face, rinse with warm water, then cool water and apply the lemon juice again.
To be more medical, dip a cotton wool inside a fresh squeezed lemon juice to rub on the face. Spend at least 20 minutes circulating the cotton over your face or any part of the body infected with acne scars, keeping it wet with the juice. Then leave it for another hour and 30 mins before washing.
4. Diluted lavender essential oil.
Lavender essential oil is one of the most toxicated home remedies to get rid of acne scars I've ever heard about. It works in less than 48 hours on hard skinned fellows, keeping them free from acne scars. But we all are not sure about how our skin would react to this if we never tried for once.
So dilute lavender essential oil and water at a 50 to 50 ratio and apply on the acne scars skin. Leave it for 20 minutes allowing it to absorb into the skin and wash with ice water. Apply the diluted lavender essential oil 2 times everyday for 2 days, and observe the progres. Once you see some drastic effect you should continue till you get rid of acne scars with this home remedy. But in case the effect doesn't seem so impressive, increas the percentage of lavender oil to 70 and 30 of the water. Sure it would work fine with a drastic effect to get rid of acne scars fast and overnight.
5. Cooled cucumber.
Chilled cucumber also have effect on acne scars and should be left on the skin for as long it is cool. And place it back to the refrigerator get chilled. Making the best effect in getting rid of acne scars overnight you have to use cucumber for more than 20 minutes two times during the day and one before you go to bed.
Rosewater and sandalwood powder also function as home remedies to get rid of acne scars fast. They should be applied and left for as long as 3 hours or even more. Likewise honey which is always a home remedy that has big reputation in clearing the skin.