If NOT, try one of these:
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There is a pimple where a stitch comes through the skin. The pimple suggests a low-grade infection.
This shows impetigo on the elbow. Impetigo is a skin infection caused by bacteria. The infection causes a red sore which leaks fluid. This area will then dry and become crusty as it heals.
If you look closely at this photo, you should be able to see a red streak (lymphangitis) spreading from the hand wound up into the arm.
The presence of lymphangitis means that there is an infection that needs urgent antibiotic treatment. It may require a hospital stay for treatment.