After Chikungunya, it is common for the skin to become sensitive and develop mild pimples due to temporary changes in immunity and oil balance, and these usually improve with simple care, so start by washing your face twice daily with a gentle cleanser, avoid oily or heavy creams, and use a light, non-comedogenic moisturizer and sunscreen, while applying mild anti-acne treatments like benzoyl peroxide or a doctor-recommended gel if needed. Avoid picking or scrubbing the skin, maintain good hydration and a balanced diet, and give it a few weeks to settle. If pimples are increasing, painful, or leaving marks, consult a dermatologist for appropriate treatment.