How common is fever in cellulitis?

Cellulitis is a bacterial infection affecting deeper layers of skin and nearby soft tissue. Fever, chills, tiredness, or feeling generally unwell can occur as the immune system responds. The affected area may also be warm, swollen, tender, and red; the redness can expand over time. Fever can occur with a range of infections and does not by itself identify the cause, so the skin changes and your overall condition matter too.

A temperature that appears alongside a rapidly changing area of redness deserves prompt medical assessment. People with diabetes, reduced immunity, or circulation problems may need particularly careful review because skin infections can become more serious.

Arrange medical advice if you have fever with a painful, hot, swollen, or spreading area of skin. Until you are assessed, rest, drink fluids if you can, and keep the affected limb raised when comfortable. Avoid squeezing the area or applying irritating products. Note when the fever and skin changes began, whether the redness is spreading, and any medicines or allergies to tell the clinician. Treatment may involve prescribed antibiotics when cellulitis is diagnosed; take them exactly as directed.

Seek urgent medical help if you feel faint or confused, have trouble breathing, develop severe pain, or become rapidly more unwell. Urgent review is also needed if swelling or redness is spreading quickly, the skin becomes dusky or blistered, or the infection is near an eye. Do not wait for the fever to settle if these warning signs appear.

Ask what features make cellulitis more likely, whether you need antibiotics, how to monitor the edge of the redness, and which changes should prompt a return visit. You can also ask how to care for any wound, insect bite, eczema, or swelling that may have allowed bacteria to enter the skin.