II. Management: Exacerbating factors to avoid
- Medications that exacerbate acne
- Androgenic steroids (e.g. Danazol, Testosterone
 - Corticosteroids
 - Lithium
 - Oral Contraceptives
 - Isoniazid
 - Phenytoin (Dilantin)
 
 - Environment
- Hot
 - Greasy (fast-food kitchen, garage)
 - Tobacco smoke exposure
 
 - Oil based Cosmetics (Acne cosmetica)
 - Emotional Stress
 - Physical Pressure (acne mechanica)
- Tight chinstrap
 - Helmet
 
 - Refined Carbohydrates (high Glycemic Index foods)
- Sweets, Chocolate and pizza do in fact worsen Acne Vulgaris, despite prior dogma
 - fiedler (2017) acta derm venereol 97(1):7-9 +PMID:27136757 [PubMed]
 - mahmood (2014) J Drugs Dermatol 13(4): 428-35 +PMID:24719062 [PubMed]
 
 
III. Management: Myths (non-causes of Acne Vulgaris)
- 
                          Acne is not a result of poor hygiene
- Constant washing does not improve acne
 - Scrubbing dries and irritates skin further
 
 
IV. Management: General recommendations
V. Management: Medications
- See Topical Acne Vulgaris Management (Moderate Acne Vulgaris Management)
 - See Systemic Acne Vulgaris Management (Severe Acne Vulgaris Management including Cystic Acne)
 - See Adjunctive Acne Vulgaris Management
 - Comedones
- Patients often present already having used Benzoyl Peroxide (OTC)
 - Start with topical Retinoids (e.g. Retin A) at bedtime
 
 - Mild Inflammatory Papules and Pustules
- Start with Benzoyl Peroxide in am AND Topical Retinoids (e.g. Retin A) at bedtime
 - Adapalene with Benzoyl Peroxide (or without if not tolerated) is a preferred first line for mild to moderate acne
 
 - Moderate Inflammatory Papules and Pustules
- Start with Benzoyl Peroxide in am AND Topical Retinoids (e.g. Retin A) at bedtime AND Oral Antibiotics
 - If effective, then maintenance with topical Retinoids with or without Benzoyl Peroxide (and Antibiotics if severe)
 - If ineffective, then advance to Isoretinoin (Accutane)
 
 - Moderate to Severe Inflammatory Acne with Nodules
- Start with Benzoyl Peroxide in am AND Topical Retinoids (e.g. Retin A) at bedtime AND Topical Antibiotic
 - If effective, then maintenance with topical Retinoids (with Benzoyl Peroxide and Antibiotics if severe)
 - If ineffective, then advance to Isoretinoin (Accutane)
 
 - Other measures
- Combined Oral Contraceptives with Spironolactone
- See Adjunctive Acne Vulgaris Management
 - Consider if Menstrual Cycle associated acne or Hyperandrogenism related findings
 
 
 - Combined Oral Contraceptives with Spironolactone
 
VI. Management: Skin of Color (e.g. black, asian, hispanic)
- Skin of Color is more susceptible to scarring, Keloids and Postinflammatory Hyperpigmentation
 - Be aware of skin and hair products (e.g. cocoa butter, olive oil) that may exacerbate acne
- Many of these products are used more commonly in Skin of Color communities
 
 - Start acne Topical Medications at less irritating, lower concentrations
- Increase dose slowly to reduce Postinflammatory Hyperpigmentation
 - Retin A 0.025% cream every other day (instead of 0.05% gel daily)
 - Benzoyl Peroxide 2.5% (instead of 5-10%)
 - Azelaic Acid (Azelex, Finacea) may be indicated if Postinflammatory Hyperpigmentation is already present
 
 
VII. Management: Pregnancy
- 
                          Acne Vulgaris outbreaks during pregnancy is associated with increased androgen levels in second and third trimesters
- Worsens in up to ~40% of pregnancies
 
 - 
                          General Measures
- Avoid oily cosmetics
 - Perform facial cleansing twice daily
 - Consider reducing dairy intake
 - Avoid high Glycemic Foods
 
 - Mild to Moderate Cases: Topicals safe in pregnancy
- Topical Benzoyl Peroxide 2.5 to 5%
 - Azelaic Acid 15 to 20%
 - Erythromycin Topical 2% (Erygel)
 - Clindamycin Topical 1% (Cleocin-T)
 
 - Severe cases
- Oral Erythromycin
 - Oral Prednisone <20 mg/day for <1 month
 - Pulsed Light Therapy
 
 - Avoid Teratogens
- Avoid topical and oral Retinoids
 
 - References
 
VIII. References
- Habif (2004) Dermatology, Mosby, p. 162-94
 - Parker in Noble (2001) Primary Care p. 758-60
 - Brown (1998) Lancet 351:1871-6 [PubMed]
 - Feldman (2004) Am Fam Physician 69:2123-56 [PubMed]
 - Gollnick (2003) J Am Acad Dermatol 49:S1-37 [PubMed]
 - James (2005) N Engl J Med 352(14):1463-72 [PubMed]
 - Oge (2019) Am Fam Physician 100(8): 475-84 [PubMed]
 - Strauss (2007) J Am Acad Dermatol 56(4): 651-63 [PubMed]
 - Titus (2012) Am Fam Physician 86(8): 734-40 [PubMed]