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Fingertip Units for Topical Steroids

Topical steroids are used for various skin conditions. The amount of topical steroid that you should apply is commonly measured by 'fingertip units'.

What are topical steroids and how do they work?

Topical steroids are creams, ointments and lotions which contain steroid drugs. Topical steroids work by reducing inflammation in the skin. They are used for various skin conditions. Unlike many other creams and ointments, it is important to get the dose right when using topical steroids. This is why a standard measure is often used - the fingertip unit.

Fingertip units

Picture of a fingertip unit of a topical steroid

One fingertip unit (FTU) is the amount of topical steroid that is squeezed out from a standard tube along an adults fingertip. (This assumes the tube has a standard 5 mm nozzle.) A finger tip is from the very end of the finger to the first crease in the finger.

One FTU is enough to treat an area of skin twice the size of the flat of an adult's hand with the fingers together.

Two FTUs are about the same as 1 g of topical steroid. Therefore, for example, say you treat an area of skin the size of eight adult hands. You will need four FTUs for each dose. (This is 2 g per dose. If the dose is once a day, then a 30 g tube should last about 15 days of treatment.)

The following are further examples:

Area of skin to be treated (adults) Size is roughly: FTUs each dose (adults)
A hand and fingers (front and back)
About 2 adult hands
1 FTU
A foot (all over)
About 4 adult hands
2 FTUs
Front of chest and abdomen
About 14 adult hands
7 FTUs
Back and buttocks
About 14 adult hands
7 FTUs
Face and neck
About 5 adult hands
2.5 FTUs
An entire arm and hand
About 8 adult hands
4 FTUs
An entire leg and foot
About 16 adult hands
8 FTUs

Fingertip units and children

An FTU of cream or ointment is measured on an adult index finger before being rubbed onto a child. Again, one FTU is used to treat an area of skin on a child equivalent to twice the size of the flat of an adult's hand with the fingers together. You can gauge the amount of topical steroid to use by using your (adult) hand to measure the amount of skin affected on the child. From this you can work out the amount of topical steroid to use.

The following gives a rough guide:

For a 3-6 month old child
Entire face and neck - 1 FTU
An entire arm and hand - 1 FTU
An entire leg and foot - 1.5 FTUs
The entire front of chest and abdomen - 1 FTU
The entire back including buttocks - 1.5 FTUs
 
For a 1-2 year old child
Entire face and neck - 1.5 FTUs
An entire arm and hand - 1.5 FTUs
An entire leg and foot - 2 FTUs
The entire front of chest and abdomen - 2 FTUs
The entire back including buttocks - 3 FTUs
 
For a 3-5 year old child
Entire face and neck - 1.5 FTUs
An entire arm and hand - 2 FTUs
An entire leg and foot - 3 FTUs
The entire front of chest and abdomen - 3 FTUs
The entire back including buttocks - 3.5 FTUs
 
For a 6-10 year old child
Entire face and neck - 2 FTUs
An entire arm and hand - 2.5 FTUs
An entire leg and foot - 4.5 FTUs
The entire front of chest and abdomen - 3.5 FTUs
The entire back including buttocks - 5 FTUs

© EMIS and PIP 2004   Updated: September 2004   Review Date: October 2005   CHIQ Accredited   PRODIGY Validated

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PS - Health and Poverty

Perhaps the biggest cause of ill health in the world is poverty. Help to Make Poverty History. For example, why not lend some of your money to disadvantaged communities to enable them to trade their way out of poverty through schemes such as Shared Interest.

See also MAKEPOVERTYHISTORY North East for details and links to campaigns against poverty.

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