To soothe skin irritation from cold and dust, first wash your face gently with a mild, soap-free cleanser to remove any dust particles. Immediately follow with a thick, fragrance-free moisturiser containing ceramides or colloidal oatmeal (like CeraVe or Aveeno) to restore your skin barrier. For redness, itching, or mild inflammation, you can apply an over-the-counter 1% hydrocortisone cream sparingly to the affected areas twice daily for 2 to 3 days. Avoid hot water, scrubbing, and active ingredients like retinoids or exfoliants until your skin fully heals. If irritation persists, please consult a dermatologist.