Infected ingrown toenail: the signs, and what to do today

How to tell irritation from infection, what to do at home today, when you need a podiatrist this week, and the red flags that mean same-day help, especially for diabetics.

If your toe is red, hot, swollen and weeping, you’re most likely right: it’s infected. Here’s what to do tonight, what actually fixes it, and the small set of signs that mean you should stop reading and get same-day help instead.

Irritated or infected? The 30-second check

An irritated ingrown toenail hurts at the nail edge when pressed or squeezed by a shoe, but the toe otherwise looks like its neighbour. An infected one announces itself: redness spreading beyond the nail fold, heat you can feel with a finger, swelling that makes the toe look shiny, throbbing at rest (the classic “feel it in bed” sign), pus or weeping, and sometimes a red, raw overgrowth of tissue beside the nail that podiatrists call proud flesh or granulation tissue. That lump bleeds at a touch and will not go away while the nail spike remains.

What to do at home today

Tonight’s job is comfort, not cure:

  • Soak the foot in warm water with a spoonful of salt for ten minutes.
  • Dry gently, cover with a clean, non-stick dressing.
  • Wear the roomiest footwear you own; at home, none.
  • Paracetamol or ibuprofen as you’d normally take them.
  • Do not perform bathroom surgery. Digging the corner out, squeezing, or cutting a V in the nail makes this worse, for reasons covered in the home remedies article.

Then book an appointment, because of the next bit.

Why it won’t clear on its own

The infection is not the disease; it’s the consequence. A spike of nail is puncturing the skin fold, and every step drives it a little deeper. Skin cannot heal around a foreign object, and bacteria never run out of an open door. This is also why antibiotics alone so often disappoint: your GP can calm the infection down, but with the spike still in place it reliably flares again within weeks.

The actual cure is mechanical and quick: the offending nail edge comes out. At the clinic I numb nothing for a simple case or use local anaesthetic where the toe is too tender, remove the spike, clear any debris and dress it. Relief is typically immediate, and most patients are amazed the appointment was that short. If the toe has ingrown repeatedly, that’s when we talk about the permanent fix.

Where infection is well established I’ll also tell you plainly if antibiotics from your GP are needed alongside; the two treatments work together, mine at the cause, theirs at the spread.

Red flags: get same-day help

Skip the podiatry booking and seek same-day care (GP urgently, 111, or A&E if severe) if you have:

  • Redness spreading up the foot or leg, or red streaks
  • Fever, chills or feeling genuinely unwell with it
  • Diabetes, peripheral arterial disease or a weakened immune system and any sign of foot infection at all
  • A toe going dusky, grey or numb

For diabetic readers this is non-negotiable: a foot infection you can’t fully feel is precisely the one that escalates. Same-day advice every time, and my diabetic foot care page explains how we look after high-risk feet long-term.

The pattern I see every summer

Shepperton, the lido, sandal season: every August I meet toes that got “a bit sore” in July, were soaked and squeezed through the school holidays, and arrive in my chair angry. The early appointment is always the small one. If your toe is at the throbbing stage, it’s earned professional eyes this week; book online and it’s usually seen within days.

Quick answers

How do I know if my ingrown toenail is infected?

Infection signs: the toe is red beyond the nail fold, hot, swollen, throbbing at rest, weeping pus, or growing proud flesh (a red overgrown lump beside the nail). A merely irritated toe is sore at the edge when pressed but calm otherwise.

Will antibiotics cure an infected ingrown toenail?

Usually not on their own. Antibiotics can calm the infection, but the nail spike that caused it is still in the skin, so it commonly flares again. The definitive fix is removing the offending nail edge.

Should I go to A&E for an infected toenail?

Rarely. A&E is for spreading redness up the foot, fever, or a diabetic foot emergency. Otherwise a podiatrist is the right clinician and can usually see you and treat the cause within days.

What can I do at home tonight?

Warm salt-water soak, dry gently, a clean dressing, roomy footwear and paracetamol or ibuprofen. Do not cut into the corner or squeeze it. Then book: home care soothes, it doesn't cure.

Sorted in one visit more often than you'd think.