Acne Scars: Healing Time and Treatment Tips - Dermatology

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Acne scars


Hello Dr.
Cheng: I would like to ask, after undergoing glycolic acid peels and photodynamic therapy for acne, my acne has completely cleared, but there are still some red acne scars.
My doctor mentioned that these red scars will take some time to fade, but it is important to maintain good sun protection and hydration.
Additionally, if I use products containing L-ascorbic acid, it will help them heal faster.
Is this true? How long will it take for those red scars to improve?

A He, 20~29 year old female. Ask Date: 2004/12/30

Dr. Zheng Lizhen reply Dermatology


Hello: Red acne scars typically take 3 to 6 months to gradually fade.
However, using products containing L-ascorbic acid (Vitamin C) along with sunscreen can help them improve more quickly.
Sincerely, Dr.
Cheng Li-Chen, Dermatologist.

Reply Date: 2004/12/30

More Info


Acne scars, particularly the red or hyperpigmented marks left after acne lesions heal, can be a source of concern for many individuals. Understanding the healing time and treatment options is essential for managing these scars effectively.

After undergoing treatments such as chemical peels (like glycolic acid peels) and laser therapy (like photodynamic therapy), it is common to experience some residual redness or discoloration. These marks are often a result of inflammation from the acne itself and can take time to fade. The duration for these scars to heal varies significantly among individuals, depending on factors such as skin type, the severity of the acne, and the effectiveness of the treatment received.

Typically, red acne scars can take anywhere from a few weeks to several months to fade. In general, the healing process can be influenced by several factors:
1. Skin Type and Tone: Individuals with lighter skin tones may notice that redness fades more quickly than those with darker skin tones, where post-inflammatory hyperpigmentation can be more pronounced and take longer to resolve.

2. Age: Younger skin tends to heal faster than older skin due to better regenerative capabilities.

3. Treatment Methods: The effectiveness of treatments like chemical peels, laser therapy, and topical treatments can significantly impact healing time. For instance, treatments that promote collagen production can help in reducing the appearance of scars more quickly.

4. Sun Protection: As your doctor mentioned, protecting your skin from sun exposure is crucial. UV rays can exacerbate hyperpigmentation, making scars more noticeable and prolonging their healing time. Using a broad-spectrum sunscreen with an SPF of 30 or higher is essential.

5. Moisturization: Keeping the skin well-hydrated can aid in the healing process. Moisturizers help maintain the skin barrier and can improve overall skin texture.

6. Topical Treatments: The use of products containing Vitamin C (ascorbic acid) can indeed help in the healing process. Vitamin C is known for its antioxidant properties and its ability to brighten the skin, which can help reduce the appearance of red or dark spots. It promotes collagen synthesis and can improve skin texture and tone.

In terms of treatment tips, here are some recommendations:
- Continue with Sun Protection: As emphasized, daily sunscreen application is critical to prevent further discoloration.

- Use Gentle Skincare Products: Avoid harsh scrubs or exfoliants that can irritate the skin. Instead, opt for gentle cleansers and soothing products.

- Consider Topical Treatments: In addition to Vitamin C, other ingredients like niacinamide, retinoids, and alpha hydroxy acids (AHAs) can help improve skin texture and reduce discoloration.

- Consult with a Dermatologist: If the redness persists or worsens, it may be beneficial to consult with a dermatologist for further evaluation. They may recommend additional treatments such as microneedling, laser therapy, or prescription-strength topical treatments.

In conclusion, while the healing time for red acne scars can vary, with proper care, including sun protection, hydration, and potentially the use of Vitamin C, you can help expedite the fading process. Patience is key, as skin healing is a gradual process. If you have further concerns or if the scars do not improve over time, seeking professional advice is always a good step.

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