What do facial pimples from a subcutaneous tick look like?

What do facial pimples from a subcutaneous tick look like? - briefly

A facial lesion caused by an embedded tick typically presents as a small, red‑to‑flesh‑colored papule or pustule, often with a central pinpoint opening where the tick’s mouthparts are lodged. The area may be tender and may show a subtle surrounding swelling.

What do facial pimples from a subcutaneous tick look like? - in detail

A subcutaneous tick that has embedded in the facial skin produces a lesion that differs from ordinary acne in several recognizable ways. The bump typically appears as a firm, raised papule or nodule measuring 3–10 mm in diameter. Its surface may be smooth or slightly ulcerated, and it is often surrounded by a pronounced halo of erythema extending 5–15 mm beyond the margin of the lesion.

Key visual characteristics include:

  • A central punctum or dark spot that corresponds to the tick’s mouthparts; the point may be slightly raised or recessed.
  • A well‑defined, dome‑shaped elevation that feels harder than a typical pustule.
  • Surrounding redness that is more uniform and intense than the diffuse inflammation seen with common pimples.
  • Occasionally a thin, translucent “window” of skin over the tick, allowing a faint view of the parasite’s body.
  • Minimal to moderate tenderness; pain may increase when pressure is applied, unlike the dull ache of a clogged pore.
  • Absence of pus; instead, the lesion may exude serous fluid if the tick’s salivary secretions irritate the tissue.

The progression of the lesion follows a predictable pattern. Within 24–48 hours after the tick embeds, the nodule becomes noticeable. Over the next few days, the surrounding erythema may expand, and the central punctum can become more prominent as the tick feeds. If the tick detaches or is removed, the nodule often collapses, leaving a residual, sometimes ulcerated crater that heals over weeks. Secondary bacterial infection can introduce purulent discharge, turning the lesion into a classic pustule, but this is a complication rather than a primary feature.

Distinguishing factors from typical acne include the presence of a visible central point, a firmer consistency, and a localized, sharply bounded area of redness. Dermatologists use these visual cues, often supplemented by dermoscopy, to identify tick‑related facial bumps and to recommend appropriate removal and antimicrobial therapy.