STI Treatment

Introduction

STI treatment starts with accurate testing and clinician diagnosis. STIs divide broadly into bacterial (often curable with antibiotics) and viral (usually managed to control symptoms and transmission, not fully cleared). Early treatment reduces transmission, complications, and fertility impact.

Do not self-medicate or stop antibiotics when symptoms improve. Follow clinician guidance, complete medication, attend follow-up, and notify partners to test and treat. Not yet tested? See STI testing first.

This page covers bacterial and viral STI treatment, common medications, partner treatment, completing courses, follow-up, complications if untreated, and when to return. For each condition, see common STIs.

STI treatment is not shameful — it is sexual health care. Good clinics are confidential and non-judgmental. Questions? FAQ or contact us.

Prevent reinfection after treatment — see STI prevention alongside this page.

Bacterial vs viral STIs

Bacterial STIs like chlamydia, gonorrhea, and syphilis usually cure with complete antibiotics. Stopping early leaves infection and may fuel resistance. Viral STIs like herpes, HPV, hepatitis B, and HIV often persist but can be managed — antivirals for hepatitis B and HIV, symptom control for herpes, monitoring for HPV.

Bacterial vs viral STI treatment comparison
Type	Examples	Usual treatment
Bacterial	Chlamydia, gonorrhea, syphilis	Antibiotics — often curable
Viral	Herpes, HPV, hepatitis B, HIV	Manage/control — often not fully cleared

Treating bacterial STIs

Chlamydia is usually treated with oral antibiotics per guidelines — often a short course, with follow-up testing to confirm cure. Gonorrhea also uses antibiotics, but resistance is a concern in many areas; clinicians choose regimens and monitor. Syphilis is typically treated with penicillin injections by stage.

Tips for bacterial treatment

Complete every dose even if symptoms improve
Avoid sex until clinician says it is safe (often after completing meds)
Ensure partner treatment as advised
Attend follow-up testing to confirm cure

Untreated chlamydia and gonorrhea can cause pelvic inflammatory disease and affect fertility. Untreated syphilis can harm the heart, brain, and nerves over time. Early treatment matters greatly.

Managing viral STIs — herpes and HPV

Herpes (HSV) is not curable, but antivirals (e.g., acyclovir, valacyclovir) reduce outbreak severity and frequency and lower transmission when used as directed. Avoid sex with open sores; use condoms when no sores to reduce spread.

Many HPV strains cause no warts; some raise cancer risk. Warts may be treated with topical meds, cryotherapy, or surgery. Pap/HPV screening helps detect cervical cancer risk. HPV vaccination prevents related strains — see STI prevention.

Partner treatment

With bacterial STIs, exposed partners usually need testing and treatment even without symptoms — partner treatment or partner therapy. Treating only one partner can cause reinfection. Clinicians may offer expedited partner therapy prescriptions where legally allowed.

Partner notification is shared responsibility. Clinics may assist where systems allow. See STI prevention for basics.

Finish the full course

Stopping antibiotics when symptoms improve is a common mistake — infection may persist, relapse, and develop resistance. Take every dose on schedule. For severe side effects, contact your clinician — do not stop on your own. Never share pills or use leftover old medication.

During treatment, clinicians may advise avoiding alcohol with certain drugs or temporary abstinence from sex. Follow your specific instructions.

Follow-up after treatment

After bacterial STI treatment, follow-up testing (test of cure) is often scheduled — commonly 2–6 weeks after completing meds, depending on the infection. Repeat testing confirms cure and catches reinfection from untreated partners. Syphilis may need multiple blood tests.

General follow-up (clinics may differ)
Condition	Follow-up	Notes
Chlamydia	Retest after treatment	Confirm cure
Gonorrhea	Retest after treatment	Monitor resistance
Syphilis	Repeat blood tests	Multiple visits by stage
Herpes	As needed for outbreaks	Suppressive therapy optional

Complications if untreated

Untreated STIs can cause long-term harm. Chlamydia and gonorrhea may lead to pelvic inflammatory disease, tube or duct inflammation, and fertility effects. Advanced syphilis can affect the heart, brain, eyes, and nerves. Herpes in pregnancy can affect infants. High-risk HPV may lead to cervical, anal, or oral cancers. Early treatment lowers these risks.

When to return to clinic

Symptoms do not improve or return after treatment
Severe medication side effects
New symptoms or partner STI notification
Scheduled follow-up visit
Pregnancy during or after STI treatment

Do not wait until symptoms worsen — return when concerned. Link with STI testing and STI prevention for continuous care.

Summary and further guidance

Consult a clinician for personalized STI guidance.

Additional notes

Consult a clinician for personalized guidance.

Special groups and reminders

Follow your clinician treatment plan.

Successful STI treatment includes completing medication, partner treatment, follow-up testing, and post-treatment prevention.

Summary

STI treatment requires clinician guidance, completing medication, partner treatment, follow-up, and reinfection prevention. Bacterial STIs often cure; viral STIs are manageable.

See common STIs, STI testing, STI prevention. Questions? FAQ.