4. Baking Soda

How to Use: Mix a few teaspoons of baking soda with enough water to form a paste, apply it to the scars, and leave it on for a few minutes before rinsing thoroughly.
Frequency: Once or twice a week.
Professional Treatments
1. Chemical Peels

Description: A dermatologist applies a chemical solution to peel off the top layers of skin, which helps reduce deeper scars.
Note: Professional consultation is recommended to choose the right type of peel for your skin type.
2. Microdermabrasion

Description: This treatment uses a device to sand away the top layer of skin, promoting new skin growth. It is particularly effective for surface scars and hyperpigmentation.
3. Laser Treatment

Description: Laser therapy can reduce the appearance of scars by removing the top layer of skin and stimulating collagen production in the deeper layers.
Consideration: Laser treatment is more suited for severe scarring and should be performed by a qualified professional.
4. Microneedling

Description: This involves rolling a device covered with tiny needles over the skin to stimulate collagen production, which can help heal scars and improve skin texture.
Frequency: Depends on the severity of the scarring; typically several sessions are required.
Tips for Prevention and Care
Avoid Sun Exposure: Sun exposure can darken scars and make them more noticeable. Always use a broad-spectrum sunscreen with SPF 30 or higher.
Do Not Pick or Squeeze Pimples: Picking at your skin can push bacteria further into the skin and increase the risk of scarring.
Maintain a Skincare Routine: Use non-comedogenic products and ensure to cleanse, moisturize, and exfoliate regularly.
Combining these treatments and preventive measures can greatly reduce the appearance of acne scars and pimple marks. For persistent or severe cases, it is best to consult a dermatologist who can recommend the most effective treatment based on your individual skin type and condition.