What is a good home remedy for acne?

There are several good home remedies for acne. I like to use Lemon for my treatment:

Lemon is a very good solution for acne problems. When you have acne you need to apply some fresh squeezed lemon juice on the acne so it will go away faster. You can use cotton balls to saturate the lemon and tap them on the acne pimples. Wash the skin after about 30 min.

Tea tree oil:

Tea tree oil is one of the best known home remedies for acne and was shown to be effective in a few clinical trials. You have to be careful not to apply too much of the oil, though, because it can cause skin irritation when used in excess.