Article in English: You can find over-the-counter spot treatments with salicylic acid at most pharmacies and drug stores. Apply the spot treatment directly to your pimple. The acid will start to dry up the oils and sebum in the area, reducing some of the zit's overall redness. Spot treatments will take several hours to several days to completely heal the pimple, but they can start to reduce redness quickly. Benzoyl peroxide kills the bacteria in pimples. Since the bacteria also cause the redness, these creams help reduce the redness, as well. Read the acne cream packaging to look for one that contains benzoyl peroxide. Eye drops that contain tetrahydrozoline hydrochloride are formulated to help get rid of redness. That same ingredient can help reduce some of the redness commonly associated with acne. Apply a few drops to a cotton swab and dab that on your pimple to get the most targeted treatment.  Alternately, freeze a cotton swab that's been soaked in eye drop solution overnight. Apply it gently to the pimple. The cold will suppress the inflammation. Eye drops won’t help treat the pimple itself. They will just reduce some of the redness for a little while. Many drug stores and pharmacies carry redness relief creams and other topical treatments. These can target mild to moderate redness and reduce discoloration in as little as 12 hours. You may want to ask a pharmacist which product is right for you, especially if you have sensitive skin or are using any other topical treatments. Common products used to combat redness include Rhofade and Eucerin Redness Relief Soothing Night Cream. Although hydrocortisone cream is typically used for itching, it can also help reduce redness. Dab a small amount of the cream directly onto your pimple. You can buy 1% hydrocortisone cream over-the-counter at most drug stores. Combine 2-3 tablespoons of powdered clay with enough water to form a spreadable paste. Apply a thin layer of the mask to your face and let it dry fully before rinsing it off with warm water. Add a few drops of tea tree oil to...

Summary in Vietnamese:
Thoa thuốc bôi ngoài da có chứa axit salicylic. Bôi kem trị mụn trứng cá chứa benzoyl peroxide. Dùng thuốc nhỏ mắt như thuốc bôi ngoài da. Sử dụng các sản phẩm giảm viêm đỏ không kê toa. Thử dùng kem hydrocortisone để giảm đỏ tạm thời. Đắp mặt nạ đất sét để làm khô mụn.