Fractional CO laser therapy combined with NB-UVB phototherapy could be used effectively and safely as an alternative modality for the treatment of vitiligo. It shortens the duration of NB-UVB therapy and is expected to increase patient compliance.

A cream formula containing 4% hydroquinone + 10% glycolic acid + 0.01% hyaluronic acid was very effective in treatment of melasma with tolerable side effects. Dermoscope is a valuable noninvasive tool in the diagnosis and follow-up of melasma treatment.

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Background Striae distensae (SD) are very common atrophic cutaneous scarring that are therapeutically challenging. Various kinds of laser had been suggested as effective treatment modalities for SD. In addition, platelet‐rich plasma (PRP) was recently recommended for its therapy. Objective To evaluate the synergistic role of PRP injection as a combined modality to fractional CO2 laser (Fr CO2) versus its combination with pulsed dye laser (PDL) in SD. Patients and methods Thirty SD patients were included in this study and treated by intradermal injection of autologous PRP on both sides, followed by laser therapy (Fr CO2 laser on right side and PDL on left side). They received 3 treatment sessions at 6 weeks interval. Results Both treatment sides reported significant clinical improvements of SD lesions, evidenced by significant reduction of width of striae lesions and significant improvement of skin texture. Furthermore, significantly higher degree of clinical improvements were observed in response to treatment sessions by combined PRP with Fr CO2 laser rather than combined PRP with PDL. Generally, post‐inflammatory hyperpigmentation (PIH) were mild in all patients. Histopathologically, SD lesions showed improvement of epidermal thickness, and more homogenization and regular orientation of dermal collagen fibers in both treatment sides, with more significant improvement on the side treated by combined PRP with Fr CO2 laser sessions rather than the other side. Conclusions PRP injection in combination with Fr CO2 laser or PDL is considered safe and effective therapeutic regimens for SD. However, its combination with Fr CO2 laser is more promising with better outcome and fewer side effects.