What you need:
1.Squeeze the lemon
2. Mash 6-10 non-coated aspirins with the freshly squeezed lemon juice
3. Let the aspirin dissolve and mix till a paste is formed
4. Apply the paste to your clean face and let it sit for 10 minutes
5. Remove the paste by dipping cotton balls in a baking soda and some water
6. Apply your daily moisturizer
The baking soda at the end neutralizes the salicylic acid.