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How do I know if my blister is infected?

Aaron Nelson
Sports Medicine
A blister is usually infected if you see an increase in redness around the formation of the blister. Also, the liquid in the blister is normally clear. If it consists of an abnormal color or pus, it is probably infected. It is important to have a physician address an infected blister as this can turn into a more serious problem if not taken care of right away.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.