English · By MundoGood · October 8, 2026
Conceptual AI-generated illustration of facial discomfort accompanying information about acute sinusitis; not a diagnostic image.
A blocked nose with facial pressure after a cold can feel like an infection that needs antibiotics immediately. Often, however, acute sinusitis is caused by a virus and improves without them. Antibiotics may treat selected bacterial infections; pain relief and nasal treatments mainly manage symptoms. Those are different jobs. CDC sinus infection basics
The most useful clues are how long symptoms have lasted, whether they are improving, and whether there are signs of a complication. This guide concerns adults with a new episode. Children, people with weakened immunity and those who are pregnant need care tailored to their circumstances.
Start with the timeline
Acute sinusitis involves inflammation around the nose and sinuses. Congestion, facial pain or pressure, reduced smell and nasal discharge can occur together. Recovery may take a few weeks, so remaining uncomfortable after several days does not by itself prove a bacterial infection. NICE advises that the usual course is around two to three weeks. NHS sinusitis overview, NICE patient guidance
Clinicians become more concerned about a bacterial cause when symptoms persist beyond ten days without improvement, clearly worsen after initially improving, or are severe from the outset. CDC describes a severe pattern as a high fever around 39°C/102°F together with purulent discharge or facial pain lasting several days. These patterns call for assessment; none is an instruction to take leftover antibiotics. CDC adult outpatient guidance
For the consultation, write down the first day of illness, any improvement followed by relapse, fever readings and whether pain is mainly on one side. Mention dental symptoms and recent antibiotics. A tooth infection or another condition may require a different approach. NICE assessment recommendations
Make the waiting period more manageable
Pain relievers such as paracetamol/acetaminophen or ibuprofen may help pain or fever when appropriate for you. Check ingredients in combination cold products to avoid taking the same drug twice. Ibuprofen and other NSAIDs can cause stomach bleeding or kidney problems and interact with blood thinners and other treatments. Ask a pharmacist about existing illness, pregnancy and your medicine list before choosing. NICE self-care evidence, NHS NSAID safety, NHS combination-product precautions
Saline spray or irrigation may feel helpful, but the evidence specifically for acute sinusitis is limited. NICE found insufficient evidence to recommend nasal saline confidently and no trial evidence for several popular measures, including steam inhalation and warm face packs. A comfortable warm compress can be a comfort choice, as suggested by CDC, without being presented as a cure. Avoid very hot steam or bowls of boiling water. NICE evidence review, CDC comfort measures, NHS scald guidance
For nasal irrigation, use water labelled distilled or sterile, or water that has been boiled and cooled. Do not use water straight from the tap. Prepare the saline and clean the device according to its instructions. CDC safe sinus rinsing
A clinician may suggest a nasal corticosteroid when symptoms have persisted without improvement. Expected symptom benefit is modest; this is not a guaranteed way to shorten the illness. Existing steroid use matters, as do interactions and correct spray technique. Do not copy a high-dose research regimen into self-treatment. NICE nasal corticosteroid evidence
Why an antibiotic is not an automatic next step
A Cochrane review published in 2018 included 15 trials involving 3,057 adults. Without antibiotics, almost half were cured after a week and around two-thirds after two weeks. Antibiotics led to faster cure in about five additional people per 100 with a clinical diagnosis, while about 13 additional people per 100 had side effects, mainly involving the stomach or intestines. These are group averages from older studies, not your individual odds. Cochrane antibiotic review
The review could not settle treatment for severe illness, weakened immunity or children because those groups were not represented. It should not be used to argue against antibiotics when a clinician identifies a serious bacterial infection.
An earlier placebo-controlled trial of amoxicillin likewise found no significant improvement in its symptom measure at day three, although some differences appeared at day seven. Its findings help explain why routine prescribing is questioned; they do not prove that antibiotics never help. Original 2012 trial
The 2025 American Academy of Otolaryngology–Head and Neck Surgery guideline supports offering watchful waiting for uncomplicated bacterial sinusitis when follow-up is assured. Its pathway calls for reassessment if there is no improvement within three to five days after diagnosis, or if symptoms worsen at any time. This is a plan agreed with a clinician, not a reason to postpone care indefinitely. AAO-HNS 2025 patient pathway
If an antibiotic is prescribed, clarify why it is needed, when improvement should be expected and how to report adverse effects. Follow the prescribed directions, and check with the prescriber before changing treatment. The right drug depends on allergies, other medicines, pregnancy and local guidance; a general article cannot select it for you.
Warning signs that should not wait
Seek urgent hospital assessment for swelling or redness around an eye, double vision, reduced vision or difficulty moving an eye. A severe frontal headache, forehead swelling, neck stiffness, confusion or new neurological symptoms also need emergency assessment. These can signal uncommon but serious complications involving the eye socket or brain. Do not wait for the ten-day mark or for a scheduled follow-up if these appear. NICE complication warning signs
Seek prompt advice if you feel very unwell, pain is worsening despite pain relief, or you have a weakened immune system. Arrange review when symptoms persist, repeatedly return or remain mainly on one side. Recurrent or prolonged sinus symptoms need their own assessment rather than repeated courses of the same home remedy. NHS sinusitis care advice
Evidence and guidance checked October 8, 2026. This is general health education, not an individual diagnosis or treatment plan.
Editorial disclosure: AI assisted with research, writing and the conceptual illustration. This is general health information, not personalized medical advice.