Derm

Question 1

How to apply benzoyl peroxide

Answer 1

Apply to skin 1-2 times a day
After washing with soap and water

Question 2

Contraindication of benzoyl peroxide

Answer 2

Hypersensitivity
Avoid contact with broken skin, eyes and mouth
Used in over 12s

Question 3

Side effects of benzoyl peroxide

Answer 3

Skin irritation
Allergic contact dermatitis
Increased risk of sunburn
May bleach fabrics and hair

Question 4

If applying benzoyl peroxide with another drug, how long apart should each be applied

Answer 4

12 hours

Question 5

Examples of topical retinoids

Answer 5

Adapalene
Tretinoin

Question 6

Indication of benzoyl peroxide

Answer 6

Acne vulgaris

Question 7

Indication of adapalene

Answer 7

Mild to moderate acne vulgaris

Question 8

From what age can you use topical retinoids

Answer 8

Over 12

Question 9

Contraindication of topical retinoids

Answer 9

Avoid in breastfeeding and pregnancy

Avoid in people with severe acne, perioral dermatitis, rosacea or a personal or
family history of non-melanoma skin cancer
Avoid accumulation in angles of the nose and contact with eyes, nostrils, mouth
and mucous membranes, eczematous, broken or sunburned skin.
Avoid exposure to excess UV light (including sunlight and solariums)

Question 10

Name 2 topical antibiotics used in acne vulgaris

Answer 10

Clindamycin and erythromycin

Question 11

What should be prescribed alongside topical antibiotics

Answer 11

Benzoyl peroxide

Question 12

Contraindication of topical antibiotics

Answer 12

History of inflammatory bowel disease or a history of antibiotic-associated colitis.
—If diarrhoea occurs, the product should be discontinued immediately.
Caution is advised when prescribing to people with atopy.
Use during pregnancy is only advised if clearly needed.

Question 13

Side effects of topical antibiotics

Answer 13

Skin irritation
Urticaria
Colitis

Question 14

Indication of azelaic acid

Answer 14

Used for acne

Question 15

Contraindications of azelaic acid

Answer 15

Hypersensitivity
Avoid contact with eyes, mouth and
mucous membranes.
Caution is advised if considering
prescribing to pregnant or breastfeeding women

Question 16

Side effects for azelaic acid

Answer 16

Skin irritation including dryness,
discomfort, erythema, peeling,
contact dermatitis, pruritus, and
skin discoloration.
Worsening of asthma (rare).

Question 17

Name 3 oral antibiotics given for acne

Answer 17

Lymecycline
Doxycycline
Oxytetracycline

Question 18

Contraindication of oral antibiotics for acne

Answer 18

Hypersensitivity
Most tetracyclines are contraindicated in pregnant or breastfeeding women and children under the age of 12 years.
Lymecycline is contraindicated in children 8 years and younger.
Avoid use of tetracyclines in myasthenia gravis (muscle weakness may be increased), systemic lupus erythematosus (may be exacerbated), hepatic and renal impairment.

Question 19

Side effects of oral antibiotics given for acne

Answer 19

Anorexia
Angioedema
Anaphylaxis

Question 20

What are the 4 corticosteroids used for eczema in order of potency

Answer 20

Hydrocortisone
Eumovate
Betamethasone
Mometasone

Question 21

MOA of topical steroids

Answer 21

upregulates anti-inflammatory disease and downregulates pro-inflammatory genes reducing inflammation

Question 22

side effects of topical steroids

Answer 22

skin thinning
acne
hypopigmentation