Alopecia Areata Flashcards
What is alopecia areata?
A presumed autoimmune condition causing localised, well demarcated patches of hair loss.
What may be present in the edges of hair loss in alopecia areata?
Small, broken ‘exclamation mark’ hairs
What is the prognosis of alopecia areata?
Hair will regrow in 50% of patients by 1 year, and in 80-90% eventually.
What are treatment options for alopecia areata?
Watchful waiting Topical or intralesional corticosteroids Topical minoxidil Phototherapy Dithranol Contact immunotherapy Wigs
What are antihistamines?
H1 inhibitors
What can antihistamines be used to treat?
Allergic rhinitis
Urticaria
What is an example of a sedating antihistamine?
What are examples of non-sedating antihistamines?
Chlorpheniramine
Loratidine
Cetirizine
What are the side effects of antihistamines?
Sedative Urinary retention (antimuscarinic) Dry mouth (antimuscarinic)
What is athlete’s foot?
Tinea pedis
Caused by fungi in the genus trichophyton
What are the features of athlete’s foot?
Scaling, flaking and itching between the toes
What is the treatment of athlete’s foot?
Topical imidazole, undecenoate, terbinafine
