Exactly what combination treatments are needed for my acne scars? (Photos)

At least from the photos provided, the forehead appears to have several deeply Indented boxcar-like scars. If this is indeed so, then subcision would can be used to elevate and smooth the scars. Once, elevated, then professionally performed manual Dermastamp microneedling can be performed to help to better blend the surface of the scars, in both texture and color, with the surrounding normal skin.
Punch excision runs the risk for the subsequent development of stretch scars and even stitch tracks, especially when performed in areas subject to muscular tension, such as the forehead.
And finally, a heavy dose of "buyer beware" should be exercised if being offered fraxel laser and RF treatments, PRP, etc., as the hard science to back up the use of these often expensive gizmos and methods lags well behind the heavy marketing and social media buzz to promote them. Hope this helps and best of luck.

For addressing acne scars, a combination of treatments is often the most effective approach, as it can target various types of scarring simultaneously. Here are some commonly used combinations:

CROSS Technique, Subcision, and Microneedling: This combination is particularly effective for atrophic scars. The CROSS technique uses chemical peels to stimulate collagen production, subcision releases fibrotic strands beneath the scars, and microneedling further promotes collagen synthesis.

Laser Therapy and Platelet-Rich Plasma (PRP) Injections: Laser treatments can resurface the skin and reduce scar depth, while PRP injections use growth factors to enhance healing and collagen production. This combination is beneficial for improving skin texture and reducing scar visibility.

Topical Retinoic Acid and Glycolic Acid (RAGA): This non-invasive option can improve mild to moderate acne scars and reduce post-inflammatory hyperpigmentation. Retinoic acid promotes cell turnover, while glycolic acid exfoliates the skin.

For scars on the forehead, Punch Excision might be suitable for deep, isolated scars. This technique involves surgically removing the scar tissue and is often followed by other treatments like laser therapy to smooth the skin.

Ultimately, the best treatment plan depends on the specific type and severity of your scars. Consulting with a dermatologist will provide a tailored approach, ensuring the most effective combination of treatments for your skin type and scar characteristics.