PHAR 815- RAS AND HSL IRAT 2 | QUESTIONS AND ANSWERS | 2026 UPDATE | WITH
COMPLETE SOLUTION
Recurrent aphthous stomatitis common name - (answer)Canker sores
RAS prevalence - (answer)Affects up to 25 percent of the general population
RAS healing time - (answer)Spontaneously heals in 7 to 14 days
RAS lesion appearance - (answer)Painful oval or round ulcers with gray to grayish yellow center and
erythematous halo
RAS mucosal location - (answer)Nonkeratinized mucosa including inside lips cheeks tongue floor of
mouth and soft palate
RAS prodrome - (answer)Burning or tingling sensation before ulcer appears
RAS pain triggers - (answer)Eating drinking talking swallowing and oral hygiene
RAS systemic symptoms - (answer)Usually no fever or lymphadenopathy
Herpes simplex labialis common name - (answer)Cold sores or fever blisters
Cause of herpes simplex labialis - (answer)Herpes simplex virus type 1
HSL healing time - (answer)Lesions heal in 10 to 14 days
HSL prodromal symptoms - (answer)Burning tingling itching or numbness 2 to 48 hours before lesion
HSL lesion appearance early - (answer)Small red papules with fluid filled vesicles 1 to 3 mm
, PHAR 815- RAS AND HSL IRAT 2 | QUESTIONS AND ANSWERS | 2026 UPDATE | WITH
COMPLETE SOLUTION
HSL lesion progression - (answer)Vesicles coalesce rupture and form a crust
HSL lesion location - (answer)Junction of skin and mucosa such as lips and nose
HSL systemic symptoms - (answer)Pain fever malaise and swollen lymph nodes
Exclusions to self treatment RAS and HSL underlying pathology - (answer)Lesions associated with
underlying disease
Exclusions to self treatment duration - (answer)Lesions present longer than 14 days
Exclusions to self treatment recurrence - (answer)Frequently recurring lesions
Exclusions to self treatment systemic illness - (answer)Fever malaise rash lymphadenopathy
Exclusions to self treatment treatment failure - (answer)Failure of prior appropriate self treatment
Exclusions to self treatment immunocompromised - (answer)Immunocompromised patients
Exclusions to self treatment diagnosis - (answer)No prior diagnosis especially for HSL
RAS treatment curability - (answer)RAS cannot be cured
Goal of RAS treatment symptom relief - (answer)Relieve pain and irritation to allow eating drinking and
oral hygiene
Goal of RAS treatment prevention - (answer)Prevent secondary infection and deter recurrence
COMPLETE SOLUTION
Recurrent aphthous stomatitis common name - (answer)Canker sores
RAS prevalence - (answer)Affects up to 25 percent of the general population
RAS healing time - (answer)Spontaneously heals in 7 to 14 days
RAS lesion appearance - (answer)Painful oval or round ulcers with gray to grayish yellow center and
erythematous halo
RAS mucosal location - (answer)Nonkeratinized mucosa including inside lips cheeks tongue floor of
mouth and soft palate
RAS prodrome - (answer)Burning or tingling sensation before ulcer appears
RAS pain triggers - (answer)Eating drinking talking swallowing and oral hygiene
RAS systemic symptoms - (answer)Usually no fever or lymphadenopathy
Herpes simplex labialis common name - (answer)Cold sores or fever blisters
Cause of herpes simplex labialis - (answer)Herpes simplex virus type 1
HSL healing time - (answer)Lesions heal in 10 to 14 days
HSL prodromal symptoms - (answer)Burning tingling itching or numbness 2 to 48 hours before lesion
HSL lesion appearance early - (answer)Small red papules with fluid filled vesicles 1 to 3 mm
, PHAR 815- RAS AND HSL IRAT 2 | QUESTIONS AND ANSWERS | 2026 UPDATE | WITH
COMPLETE SOLUTION
HSL lesion progression - (answer)Vesicles coalesce rupture and form a crust
HSL lesion location - (answer)Junction of skin and mucosa such as lips and nose
HSL systemic symptoms - (answer)Pain fever malaise and swollen lymph nodes
Exclusions to self treatment RAS and HSL underlying pathology - (answer)Lesions associated with
underlying disease
Exclusions to self treatment duration - (answer)Lesions present longer than 14 days
Exclusions to self treatment recurrence - (answer)Frequently recurring lesions
Exclusions to self treatment systemic illness - (answer)Fever malaise rash lymphadenopathy
Exclusions to self treatment treatment failure - (answer)Failure of prior appropriate self treatment
Exclusions to self treatment immunocompromised - (answer)Immunocompromised patients
Exclusions to self treatment diagnosis - (answer)No prior diagnosis especially for HSL
RAS treatment curability - (answer)RAS cannot be cured
Goal of RAS treatment symptom relief - (answer)Relieve pain and irritation to allow eating drinking and
oral hygiene
Goal of RAS treatment prevention - (answer)Prevent secondary infection and deter recurrence
