Based on the image analysis and your symptoms, here is a clear breakdown:
Most Likely Diagnosis: Plantar Wart (Verruca Plantaris) - or possibly a Corn (Clavus)
The image shows a small lesion on the sole (plantar surface) of your foot, roughly 1-2mm, with a slightly rough texture and possible disruption of normal skin lines. Given that it has been there for at least a month and hurts with walking/pressure, the two top possibilities are:
How to Tell Which One You Have
| Feature | Plantar Wart | Corn |
|---|
| Cause | HPV virus infection | Repeated pressure/friction from footwear |
| Pain | Hurts MORE when squeezed side-to-side | Hurts MORE with direct pressing down |
| Skin lines | Skin lines are interrupted/broken by the lesion | Skin lines continue through the lesion |
| Appearance | Rough, grainy surface; may have tiny black dots (clotted capillaries) | Hard, dense, yellowish, smooth centre (like a plug) |
| Contagious | Yes - spreads to other areas or people | No |
| Spreads | Can form clusters | Stays in one spot |
Quick self-test: Pinch the lesion from the sides. If that hurts more than pressing directly on it, it is likely a wart. If pressing directly is worse, it's more likely a corn.
Treatment
If it's a Plantar Wart:
- Salicylic acid (first-line, OTC) - Products like Compound W or Dr. Scholl's Wart Remover (17-40% salicylic acid). Apply daily after soaking and filing the area. Takes 4-12 weeks. This is the most accessible home treatment.
- Duct tape occlusion - Covering the wart continuously with duct tape for weeks can sometimes work, though evidence is mixed.
- Cryotherapy (freeze treatment) - Done by a doctor using liquid nitrogen; very effective, may need several sessions.
- Podiatrist/dermatologist procedures - Needling, electrocautery, laser, or immunotherapy for stubborn warts.
If it's a Corn:
- Remove the pressure source - Change footwear; use well-cushioned, properly fitting shoes.
- Salicylic acid corn pads (OTC) - These soften and remove the thickened skin over a few weeks.
- Pumice stone - After soaking in warm water, gently file the area.
- Podiatrist debridement - A podiatrist can safely pare (shave) the corn down in one visit, giving immediate relief.
- Orthotics/padding - Custom insoles redistribute pressure away from the painful spot.
What You Should Do
Since this has been painful for 1 month and is interfering with walking, you should see a podiatrist or dermatologist for a definitive diagnosis. A trained clinician can tell the difference with certainty in seconds, and professional treatment (especially cryotherapy or debridement) will resolve it much faster than home remedies.
Do not try to cut or dig it out yourself - this risks infection, especially in that weight-bearing area.
Disclaimer: This is general medical information only, not a personal diagnosis. A healthcare professional should examine your foot in person before starting any treatment.