Health & Body
Timing answers for your health, from everyday illnesses to recovery milestones. Find out how long colds, flu, and infections really last, when common medications like antibiotics or antidepressants start working, how long substances stay detectable in your system, and what realistic recovery timelines look like after surgery or injury. Every answer leads with the typical range, explains the factors that stretch or shorten it — age, severity, treatment, overall health — and flags the warning signs that mean it's time to see a doctor. Ranges reflect published guidance from sources like the CDC, Mayo Clinic, and Cleveland Clinic, not worst-case anecdotes.
How Long Do Shingrix Side Effects Last?
2–3 days for most people. Common side effects like arm soreness, fatigue, and muscle pain typically peak within 24 hours and resolve within 2–3 days after vaccination.
How Long Is Pink Eye Contagious?
Viral pink eye is contagious for 10–14 days from symptom onset. Bacterial pink eye stops being contagious 24–48 hours after starting antibiotic drops.
How Long Is Shingles Contagious?
Shingles is contagious for 7–10 days, from the time blisters appear until they fully crust over. The virus spreads as varicella-zoster (chickenpox) to those who haven't had it.
How Long Does It Take for TMJ Treatment to Work?
Most TMJ treatments show noticeable improvement within 2–6 weeks. Conservative approaches like splints and physical therapy may take 1–3 months for full effect, while surgical recovery can take 3–6 months.
How Long Does It Take to Pass Gallstones?
A gallstone attack lasts 30 minutes to several hours. Gallstones do not pass on their own like kidney stones — treatment or surgery is usually required.
How Long Does It Take for MRSA to Heal?
Minor MRSA skin infections heal in 1–3 weeks with proper treatment. Invasive MRSA infections require 4–6 weeks or more of IV antibiotics.
How Long Does a Black Eye Take to Heal?
2–3 weeks for a typical black eye to fully heal. Swelling peaks within 48 hours, and the bruise changes color as it fades over 14–21 days.
How Long Does a Broken Bone Take to Heal?
6–8 weeks for most fractures in healthy adults. Simple fractures (wrist, ankle) heal in 6–8 weeks. Complex fractures (femur, tibia) take 3–6 months. Children heal faster (3–6 weeks).
How Long Does a CT Scan Take?
10–30 minutes for the actual scan, though appointments with contrast dye may take up to 1–2 hours total including preparation and observation.
How Long Does a Rotator Cuff Take to Heal?
4–6 months for partial tears with physical therapy. 6–9 months after arthroscopic surgery. 9–12 months for large or massive tear repairs to reach full strength.
How Long Does a Stomach Ulcer Take to Heal?
4–8 weeks with proper treatment. H. pylori-caused ulcers require 10–14 days of antibiotics plus acid reducers. NSAID-caused ulcers heal in 4–6 weeks once the medication is stopped.
How Long Does Athlete's Foot Last?
2–4 weeks with consistent over-the-counter antifungal treatment. Without treatment, athlete's foot can persist indefinitely and spread to other areas of the body.
How Long Does a Torn Meniscus Take to Heal?
6–8 weeks for conservative treatment of minor tears. 3–4 months after arthroscopic meniscectomy. 4–6 months after meniscus repair surgery with full rehab.
How Long Does Carpal Tunnel Take to Heal?
4–6 weeks for mild cases with bracing and rest. 6–12 weeks for full recovery after carpal tunnel release surgery, though grip strength may take 3–6 months to return.
How Long Does Croup Last?
3–7 days in most children. The barking cough is worst on nights 2–3 and typically improves by day 5. Stridor (noisy breathing) usually resolves within 2 days.
How Long Does It Take for Magnesium to Work?
1 day – 4 weeks depending on the symptom. Magnesium relieves constipation within hours, muscle cramps in 1–2 weeks, sleep issues in 1–2 weeks, and anxiety in 2–4 weeks.
How Long Does It Take to Detox from Sugar?
1–2 weeks for withdrawal symptoms to subside. Full cravings reduction takes 2–4 weeks.
How Long Does It Take to Recover from LASIK?
24–48 hours for initial recovery with most people seeing clearly the next day. Full visual stabilization takes 3–6 months as the corneal flap heals completely.
How Long Does Poison Oak Last?
1–3 weeks for most cases. The rash appears 12–72 hours after exposure, peaks at 5–7 days, and gradually resolves over 1–3 weeks. Severe cases can last 4–6 weeks.
How Long Does Sunburn Last?
3–7 days for mild sunburn. Moderate sunburn with blistering lasts 1–2 weeks. Severe sunburn can take 3+ weeks to fully heal. Peeling typically starts on days 3–5.