The amount of a cream or ointment to be dispensed for topical application depends on the body surface area to be treated, the thickness of the layer to be applied, the number of daily applications, and the number of days of therapy.
body region to be treated
percent BSA
grams required for a single application
anogenital
1%
1 gram
face
3%
1 gram
one hand
3%
1 gram
scalp
6%
2 grams
one arm (without hand)
7%
3 grams
anterior trunk
14%
4 grams
posterior trunk
16%
4 grams
one leg, including foot
20%
5 grams
whole body
100%
30 - 40 grams
body region
grams needed for 1 week of therapy
once a day
2 times a day
3 times a day
anogenital
7
15
20
face
7
15
20
one hand
7
15
20
scalp
15
30
45
one arm (without hand)
21
45
60
anterior trunk
30
60
90
posterior trunk
30
60
90
one leg, including foot
35
70
100
whole body
210 - 280
450 - 500
600 - 1000
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