Most upper respiratory infections are caused by viruses, which means they can’t be cured with antibiotics. Treatment focuses on managing symptoms while your body fights off the infection, which typically takes 7 to 10 days. The good news: a combination of simple home strategies and targeted over-the-counter options can make that week considerably more comfortable.
What’s Happening in Your Body
A URI is an umbrella term covering the common cold, sinus infections, sore throats, and similar infections of the nose, throat, and airways. Rhinovirus causes 50% to 80% of cases, with coronaviruses, adenoviruses, influenza, and RSV responsible for most of the rest. A smaller number of URIs are bacterial, including strep throat and some sinus infections.
The infection triggers your immune system to release inflammatory compounds that cause the familiar cascade: a sore throat typically appears first, followed a day or two later by a runny nose and sneezing. Congestion, cough, and hoarseness develop shortly after. Low-grade fever, body aches, and fatigue are common in the early days. Symptoms usually peak around days 2 through 4, then gradually improve.
Start With These Home Treatments
Rest and hydration are not just generic advice. Your immune system consumes significant energy fighting infection, and dehydration thickens mucus, making congestion worse. Water, broth, and warm liquids all help. Warm tea or lemon water mixed with honey can soothe a sore throat and suppress coughing. Honey performs comparably to many over-the-counter cough medicines in studies, and one trial found three types of honey outperformed placebo over a three-day period. A dose of half a teaspoon to one teaspoon works for children over age 1. Never give honey to infants under 12 months due to the risk of botulism.
Saline nasal rinses are one of the most effective and underused home remedies. Rinsing your nasal passages with a saltwater solution clears excess mucus, reduces congestion, and may flush out infectious material from your sinuses. In one large study of over 400 children, saline irrigation significantly reduced nasal secretions, sore throat, and nasal obstruction, and cut down the need for decongestant medications. You can use a neti pot, squeeze bottle, or saline spray. Normal saline (isotonic) is gentlest; hypertonic saline delivers a stronger effect but can cause mild burning. Minor nasal irritation is the only notable side effect.
Humidified air, especially while sleeping, helps keep nasal passages moist and can ease nighttime congestion and coughing.
Over-the-Counter Medications That Help
No single OTC product cures a URI, but several can target specific symptoms. Choosing the right one depends on which symptom bothers you most.
- Pain and fever: Acetaminophen or ibuprofen reduces fever, headache, body aches, and sore throat pain.
- Nasal congestion: Decongestant sprays or pills shrink swollen nasal passages. Nasal sprays work faster but should not be used for more than three consecutive days, as they can cause rebound congestion.
- Runny nose and sneezing: Older-generation antihistamines can help dry up a runny nose, though they cause drowsiness.
- Cough: Evidence for OTC cough medicines is mixed. A Cochrane review of six trials comparing cough suppressants to placebo found variable results in adults, and cough medicines were no more effective than placebo in children. Honey or a warm drink may work just as well.
- Chest congestion: Expectorants (like guaifenesin) are meant to thin mucus and make it easier to cough up. Results from clinical trials are inconsistent, with only one of three studies showing a clear benefit.
Combination cold products that bundle several ingredients together are popular but can lead to taking medications you don’t need, or doubling up on an ingredient if you’re also taking a standalone product. Choosing single-ingredient products for your specific symptoms is generally a safer approach.
OTC Medicine and Children
The FDA does not recommend OTC cough and cold medicines for children under 2, citing the risk of serious and potentially life-threatening side effects. Manufacturers voluntarily label these products with a warning against use in children under 4. The FDA has also found no proven benefits of homeopathic cough and cold products in young children and advises against giving them to kids under 4. For young children, saline drops, a cool-mist humidifier, honey (if over age 1), and fluids are the safest options.
Zinc and Vitamin C
Zinc lozenges, taken within 24 hours of symptom onset, can shorten a cold by roughly 2 days. Timing matters: one study found that people who started zinc within 24 hours of their first symptoms recovered about a day and a half faster than those who waited up to 48 hours. Most effective trials used lozenges containing 10 to 23 mg of zinc, dissolved every 2 to 3 hours while awake, up to about 6 to 8 lozenges per day. Doses that are too low may not stimulate a meaningful immune response, while very high doses can actually suppress immune function.
Vitamin C has a more modest effect. Regular supplementation reduces cold duration by about 8% in adults, which translates to roughly half a day less of symptoms. Starting vitamin C only after you’re already sick appears to have little benefit, so it works better as a daily preventive habit than a treatment.
Why Antibiotics Usually Don’t Help
Since the vast majority of URIs are viral, antibiotics won’t speed recovery. Even sinus infections, which many people assume need antibiotics, are viral 90% to 98% of the time. Unnecessary antibiotic use causes side effects like digestive problems and contributes to antibiotic resistance, making these drugs less effective when they’re truly needed.
Antibiotics become appropriate when a bacterial infection is likely. The CDC identifies three patterns that suggest a sinus infection has become bacterial: symptoms that are severe from the start (fever of 102°F or higher with purulent nasal discharge or facial pain lasting more than 3 to 4 days), symptoms that persist beyond 10 days without any improvement, or symptoms that initially get better and then worsen again after 5 to 6 days with new fever, worsening cough, or increased nasal discharge. For bronchitis-type coughs, routine antibiotic treatment is not recommended regardless of how long the cough lasts.
Signs That Need Medical Attention
Most URIs resolve on their own, but certain symptoms signal something more serious. Seek care if your symptoms last longer than 10 days without improvement, if you develop a high fever (102°F or above) with facial pain and thick discolored nasal discharge, or if symptoms improve and then sharply worsen. Difficulty breathing, chest pain, or a stiff neck warrant prompt evaluation. For infants 3 months or younger, any cold symptoms should be evaluated by a healthcare provider, and children with a fever of 100.4°F or higher need attention as well.