science

Whitfield's ointment

Whitfield's ointment is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Whitfield's ointment rather than just read about it. In short: Whitfield's ointment is an acidic ointment used for the topical treatment of dermatophytosis, such as athlete's foot and erythrasma. It can have a slight burning effect that goes away after a few minutes.

Key takeaways

Whitfield's ointment belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Whitfield's ointment to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Whitfield's ointment from memory before moving on to harder problems.

Reference excerpt

Whitfield's ointment is an acidic ointment used for the topical treatment of dermatophytosis, such as athlete's foot and erythrasma. It can have a slight burning effect that goes away after a few minutes. It is named after Arthur Whitfield (1868–1947), a British dermatologist. The original ointment contains 3% salicylic acid and 6% benzoic acid in a suitable base, such as petrolatum. Alternatively, a short-chain alcohol or fatty alcohol can be used as the base. Whitfield's ointment is not advised for areas of thinner skin, such as the scrotum or the groin, and in such sites should only be used diluted to half-strength. A systematic review of the medical literature comparing treatments for ringworm and jock itch was generally critical of the quality of data available. It concluded that there was "insufficient evidence to determine if Whitfield's ointment, a widely used agent, is effective", implying that the studies were of poor quality and therefore effectiveness could not be determined. Individual studies support its use as a cost-effective treatment.

See also Castellani's paint Friar's Balsam Lassar's paste

References

Illustrations

Whitfield's ointment: Whitfield's ointment — Whitfield's ointment

Worked examples

Example 1 — a first encounter with Whitfield's ointment

Start with the simplest possible case. Write down what Whitfield's ointment claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Whitfield's ointment before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Whitfield's ointment ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Whitfield's ointment

In research: Whitfield's ointment appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Whitfield's ointment in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Whitfield's ointment is common in secondary-school and first-year university syllabi. It links to neighbouring topics Antifungals for dermatologic use, Ointments, so understanding it makes those chapters shorter.
In everyday life: Look for Whitfield's ointment outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Whitfield's ointment in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Whitfield's ointment means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Whitfield's ointment out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Whitfield's ointment in simple terms?

Why does Whitfield's ointment matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Whitfield's ointment?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Whitfield's ointment.