These look like acne but they are NOT ACNE!

Open by naming a familiar problem, then warn that several things may look like it but are not the same. State that the usual solution may be wrong.

Name the first alternative and immediately contrast it with the expected diagnosis. Then give a short list of common triggers or causes.

Introduce another visually similar condition and provide one memorable underlying cause or mechanism.

Use a direct visual description to distinguish the next example, then explain what the bumps or symptoms physically contain.

Add a familiar nickname or alternate label, reject the common diagnosis, and explain the biological cause.

Give one final example in the same repeated format, followed by a simple explanation of what creates it.

Close by restating the main lesson. The visual similarity does not mean the treatment should be the same.