Most scorpion stings cause pain and swelling that resolve within 48 hours without treatment. The initial burning pain is the most intense symptom but typically peaks within the first hour or two. However, some stings produce lingering tingling or numbness that can persist for several weeks, and stings from more dangerous species like the Arizona bark scorpion can cause symptoms that escalate over the first 24 hours.
The First Few Hours
A scorpion sting feels like a sharp, burning pain at the site. Within minutes, the area may become red, swollen, and itchy. Venom reaches peak concentration in your bloodstream within 30 to 60 minutes after the sting, which is when pain and local symptoms are usually at their worst.
For the vast majority of stings, this is as bad as it gets. The body begins clearing venom relatively quickly, with a blood half-life of roughly 3 hours for many species. That means most of the active venom is neutralized within the first 12 hours, and the acute pain fades well before that. Applying ice for 10 to 20 minutes at a time (with a thin cloth between the ice and your skin) helps manage the pain during this window.
24 to 48 Hours: When Most Symptoms Clear
By the second day, the majority of people are feeling significantly better. Swelling goes down, the burning sensation fades, and any redness around the sting site shrinks. For mild stings with only local effects (the most common scenario), this 48-hour window covers the full recovery.
There’s an important exception. If the sting came from a medically significant species, particularly the Arizona bark scorpion, symptoms can continue developing for up to 24 hours rather than improving. Signs that things are getting worse rather than better include a racing heart, muscle twitching, difficulty swallowing, or a feeling of agitation and restlessness. These are signs of systemic envenomation, where the venom is affecting your nervous system beyond the sting site.
The Tingling That Lasts Weeks
Even after pain and swelling are gone, many people notice a strange tingling or numbness around the sting site. This sensation feels like a mild electric current and can spread to nearby areas. It’s the last symptom to resolve, and it commonly persists for several weeks before fully disappearing. This lingering nerve sensitivity is not dangerous, but it can be unsettling if you’re not expecting it. Tapping the sting site and feeling an exaggerated “zap” is a classic sign of this phenomenon.
Why Children Recover More Slowly
Children experience the same symptoms as adults but in a more severe and prolonged form. The reason is straightforward: a scorpion injects roughly the same amount of venom regardless of who it stings, so a smaller body absorbs a higher concentration. In one study of hospitalized children with scorpion stings, the average hospital stay was about 3.7 days, with some children staying up to 9 days for more serious reactions. The same sting that causes a day of discomfort in an adult can produce multi-day systemic symptoms in a young child.
How Antivenom Changes the Timeline
For severe stings from bark scorpions, antivenom dramatically shortens recovery. In clinical trials, the average time from antivenom treatment to symptom resolution was about 1.4 hours. By comparison, only 3% of patients receiving supportive care alone saw their symptoms resolve within 4 hours of arriving at the hospital. In a randomized study, every patient who received antivenom had their symptoms resolve, compared to just 1 in 7 patients given a placebo.
Antivenom is reserved for serious cases involving systemic symptoms like muscle spasms, breathing difficulty, or uncontrolled eye movements. Most stings never reach this severity and don’t require it.
Recovery Timeline at a Glance
- First 1 to 2 hours: Peak pain, swelling, and redness at the sting site. Venom reaches its highest blood concentration.
- 4 to 12 hours: Acute pain begins fading for mild stings. Systemic symptoms, if they’re going to appear, typically show up in this window.
- 24 to 48 hours: Most local symptoms resolve. Swelling and redness subside.
- 1 to 4 weeks: Residual tingling or numbness at the sting site gradually fades.
The species of scorpion, your body size, and where on your body you were stung all affect where you fall in this range. Stings on fingers and toes tend to produce more intense nerve symptoms than stings on fleshy areas like the thigh. And the roughly 1,500 scorpion species worldwide vary enormously in venom potency, so a sting from a small, non-dangerous species may cause little more than a brief bee-sting-like pain that’s gone in hours.