Take a tomato, peeled and mashed, then apply it over the blackheads before going to bed. Leave it overnight and wash with clean water in the morning. Lemon is another ingredient that is also effective in treating blackheads. Squeeze a few drops of lemon juice in a bowl, add salt and stir the mixture well. Wash your face with warm water and apply the mixture on the blackheads. Leave for 20 minutes and wash your face again with warm water. You can also apply a thin layer of toothpaste over the blackheads, leave it for around 25 minutes and then wash your face gently with warm water. Repeat this remedy for two weeks to be free from blackheads. Or apply honey onto the affected area and wash off with warm water after 15 minutes. To remove blackheads prepare a mixture of baking soda and water to make a paste. Apply gently onto the affected areas, allow to dry for few minutes and then rinse it off with warm water.