cellulitis, acne and rosacea

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Last updated 8:02 PM on 4/30/26
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16 Terms

1
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Cellulitis

  • acute bacterial infections of dermis and subcutaneous tissue

  • Symptoms

    • Pain, warmth, swelling

    • Possible blisters

    • Fever, malaise

  • Commonly affects lower limbs

  • Cause: microorganism entry after skin barrier broken

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Cellulitis differential diagnosis

  • DVT

  • Septic arthritis

  • Gout

  • Thrombophlebitis

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Cellulitis management

  • class III or IV suspected

  • Class. II + serious illness

  • Rapid deterioration

  • Very young or very frail patients

  • Antibiotics treatment

    • Flucloxacillin

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Acne

  • chronic inflammatory skin condition

  • Blocked inflamed pilosebaceous unit

  • Affects area with high amount of pilosebaceous unit

  • Excess sebum production

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Acne- management

  • benzoyl peroxide

  • Retinoids

  • Antibiotics

  • Azelaic acid

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Benzoyl peroxide

  • licensed from age 12

  • Wash with soap and water before application

  • Start at lower strength

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Topical retinoids

  • licensed from age 12

  • Start at lower frequency in sensitive skin then increase application

  • Apply sparingly and cover whole are not just comedones

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Topical antibiotics

  • clindamycin and erythromycin

  • Prescribe as combination with benzoyl peroxide

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Oral antibiotics

  • add in if topical preparation fail

  • Tetracyclines

  • Minocyclines

  • Only use erythromycin if tetracyclines Contraindicated

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Azelaic acid

  • avoid contract with broken skin, eyes mouth nostrils and mucous membrane

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Combined oral contraceptives

  • Co- cyprindiol

  • Use if 1st line option not successful

  • Review at 6 months

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Oral isotretinoin

  • consider for age 12+ with severe acne resistant to all other Tx

    • Nodule cystic acne

    • Acne conglobate

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Rosacea

  • chronic inflammatory skin condition

  • Symptoms

    • Facial flushing

    • Erythema

    • Papules

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Rosacea causes

  • genetics

  • Immune system sys regulation

  • Vascular neuronal dysfunction

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Rosacea management

  • British skin foundation, British association of dermatologist

  • Topical brimonidine gel

  • Topical ivermectin

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Brimonidine

  • A2 adrenoceptor agonist

  • Reduces erythema by cutaneous vasoconstriction