I'm sorry to hear about the pimples and dark scars you're experiencing, along with sensitivity to sunlight. These skin concerns can be distressing, but there are ways to manage them carefully.

Here are some suggestions:

• Sun Protection: Since you are sensitive to sunlight, it is crucial to use a broad-spectrum sunscreen with at least SPF 30 daily, even if you are indoors. This helps prevent further darkening of scars and protects sensitive skin.

• Gentle Skincare: The Olay Natural White Instant Glowing Fairness Cream you used contains ingredients like niacinamide (Vitamin B3) and aloe vera, which can help brighten skin and soothe irritation. However, if you notice increased sensitivity or irritation, it might be best to stop using it and consult a dermatologist.

• Acne and Scar Care: For pimples and dark scars (post-inflammatory hyperpigmentation), treatments like topical niacinamide, azelaic acid, or mild chemical exfoliants (like glycolic acid) can be helpful but should be used under medical supervision to avoid irritation.

• Avoid Harsh Products: Avoid scrubbing your face harshly or using strong bleaching agents, as these can worsen sensitivity and pigmentation.

• Consult a Dermatologist: Since you have both acne and dark scars along with sun sensitivity, a dermatologist can provide a tailored treatment plan. They may recommend prescription topical treatments, procedures like chemical peels or laser therapy, and guidance on safe sun protection.

Taking care of your skin gently and protecting it from the sun are key first steps. Please consider seeing a dermatologist for a thorough evaluation and personalized treatment.