As mentioned previously, some OTC acne products can cause skin irritation or dryness. However, it's important that acne sufferers avoid heavy, oily moisturisers that may block pores and worsen their symptoms. Advise customers to look for light, non-greasy products that are oil- and fragrance-free.

Products labeled 'non-comedogenic' are recommended as they do not clog skin's pores. Customers could try using Dermalogica Active Moist or La Roche-Posay Effaclar Mat. In addition, because some acne treatments can make skin more sensitive to the sun's UV rays, moisturisers that contain a sunscreen may be useful. Available products include: Nivea Daily Essentials Light Moisturising Day Cream with SPF30 and Neutrogena Multi- Defence Daily Moisturiser available in SPF15 or 25.

Regardless of the treatment being used, there are various self-care techniques that can also be useful:

• Cleanse skin gently €“ avoid abrasive scrubs, harsh astringents and oil-stripping masks. Skin should be cleansed twice daily with lukewarm water and a mild cleanser
• Remove all make-up before going to bed and gently wash skin after sweating
• Leave acne lesions alone €“ never pick, squeeze or pop pimples, blackheads or other lesions
• Choose oil- and fragrance-free skincare, make-up and hair care products
• Men with acne should be careful when shaving €“ it may be trial and error to see if a traditional or an electric razor works best for them
• Wash hair regularly and tie it back away from the face
• Use acne treatments as prescribed and persevere €“ allow eight weeks for skin to improve. Even if the skin clears, medication should be continued as advised to help prevent future breakouts
• Apply topical acne medication five to 10 minutes after cleansing and before applying make-up
• Be sun safe €“ some acne medications (e.g. benzoyl peroxide) can make skin more sensitive to UV rays and more likely to burn.