Winter brings coughs and colds. It also can bring your sexual health into question if you’ve been sexually active. Is this a virus or an STI? Some symptoms overlap. Here is how to tell what to test, when to test, and what to do next.

Sore Throat After Oral Sex

A winter virus can cause a sore throat. So can oral sex. Gonorrhea and chlamydia can infect the throat without other signs. If you had recent oral sex and a new sore throat, ask for a throat swab NAAT. Urine tests will not catch throat infections. Test now and repeat at two weeks if exposure was very recent.

Rectal Pain or Bleeding After Receptive Anal Sex

Hemorrhoids are common in winter. So are rectal infections after sex. Gonorrhea and chlamydia can infect the rectum. Ask for a rectal swab NAAT. Add a syphilis blood test if you notice a rash or sores. Test now. Retest at two weeks if needed.

Flu-like Illness After a High-risk Exposure

Fever, body aches, night sweats, and sore throat can be a virus. They can also be acute HIV two to six weeks after exposure. Do not wait. Test for HIV now. Use a rapid test and follow with a 4th-generation lab test. Repeat based on window periods.

New Sores, Blisters, or Ulcers

Fresh sores should be swabbed right away. That helps diagnose herpes accurately. Ask for a syphilis blood test as well. Do not rely on blood tests for herpes alone when sores are present. A swab is better.

Unusual Discharge or Burning with Urination

These point toward chlamydia or gonorrhea. Test with urine or a vaginal swab. Add throat and rectal swabs if those sites were involved. Many STIs have no symptoms, so test even if things seem mild.

Window Period Basics

HIV 4th-gen blood tests turn positive most often by 18 to 45 days. Chlamydia and gonorrhea NAATs are reliable about one to two weeks after exposure. Many syphilis tests turn positive by three to six weeks. If you test early, set a follow-up date.

When Timing is Urgent

Possible HIV exposure in the last 72 hours needs PEP now. It is a 28-day course that prevents infection when started quickly. If you are eligible and had condomless sex with male partners, DoxyPEP can reduce chlamydia and syphilis risk when taken within 24 to 72 hours.

Simple Prevention that Helps in any Season

Use condoms or internal condoms every time. Pair with water or silicone lube to prevent tears. If you have ongoing HIV risk, ask about daily or long-acting PrEP. Keep a steady testing rhythm: yearly at minimum, every three to six months with new or multiple partners.

How Health Stop STL can Help

We offer free and confidential STI and HIV testing, including throat and rectal swabs. Get at-home kits with clear instructions if you cannot come in. Pick up condoms and lube. Start PrEP, get fast PEP referrals, and learn whether DoxyPEP fits your risk. No insurance or ID required.

Not sure which tests you need? Tell us your symptoms or what happened. We will match the tests and timing, judgment-free.