MRSA often starts as a small, tender bump that can look like a pimple, acne spot, or insect bite, then quickly becomes a red, warm, painful lump that may fill with pus or form blisters. It can also look like a boil or a worsening skin sore, and the redness or swelling may spread.

Early signs

  • Small red bump or pimple-like spot.
  • Warmth, swelling, and increasing pain.
  • Yellow or white center, pus, or drainage.
  • Sometimes a cluster of blisters or a boil.

When to get checked

A skin spot that is getting worse after a few days, is very painful, is draining pus, or has red streaks spreading away from it should be evaluated promptly. Fever, feeling unwell, or trouble breathing are urgent warning signs.

Important note

MRSA can be hard to tell apart from other skin infections by appearance alone, so a clinician may need to examine it and decide whether testing or treatment is needed. It is especially important not to squeeze or try to drain it yourself.

If you want, I can also show how MRSA differs from a simple pimple, boil, or spider bite.