A noticeable change in vaginal discharge or a fishy smell can feel worrying, particularly when you are unsure whether it will settle on its own. Knowing how to treat bacterial vaginosis means recognising the symptoms, using the right treatment and getting advice when something does not feel right. BV is common, treatable and not usually serious, but it can be uncomfortable and may return for some people.

Bacterial vaginosis, often called BV, happens when the usual balance of bacteria in the vagina changes. It is not caused by poor hygiene, and it is not classed as a sexually transmitted infection. However, sex can sometimes be linked with changes in vaginal bacteria, and BV may be more likely after having a new sexual partner or multiple partners.

Recognising the symptoms of BV

The most typical symptom is a thin, watery discharge that is white or grey. It may have a strong fishy odour, which can be more noticeable after sex or during a period. Some people also experience mild irritation or discomfort, although itching is less common with BV than it is with thrush.

Not everyone with BV has symptoms. If you do have a change in discharge, smell, itching, soreness or pain, it is sensible not to assume the cause. Thrush, sexually transmitted infections and some skin conditions can cause overlapping symptoms but need different treatment.

When it may not be bacterial vaginosis

BV does not usually cause significant itching, pain when passing urine, lower tummy pain, sores or bleeding between periods. If you have any of these symptoms, seek clinical advice rather than treating yourself for BV. The same applies if you are pregnant, have recently given birth, have a weakened immune system, or your symptoms keep returning.

If there is any possibility of an STI, particularly after sex without a condom with a new partner, testing is a sensible step. Treatment for BV will not treat an STI.

How to treat bacterial vaginosis

The most effective treatment for symptomatic bacterial vaginosis is usually a prescribed antibiotic. A clinician will consider your symptoms, medical history, allergies, other medicines and whether you are pregnant or breastfeeding before recommending the most suitable option.

Common prescribed treatments include metronidazole, taken as tablets or used as a vaginal gel, and clindamycin cream. The treatment choice and duration vary. Tablets may be preferable for some people, while a vaginal treatment can be more convenient or better tolerated for others. It depends on your circumstances and the treatment that is clinically appropriate for you.

Take the medicine exactly as directed and complete the course, even if the smell or discharge improves sooner. Stopping early can make it more likely that symptoms will return. If you miss a dose, check the patient information leaflet or ask a pharmacist what to do rather than doubling up without advice.

Alcohol and metronidazole

If you are prescribed metronidazole, follow the specific advice supplied with your medicine about alcohol. Guidance can differ according to the product and your prescriber’s instructions. If you are uncertain, avoid alcohol during treatment and ask a pharmacist for clear advice before drinking.

Some medicines can interact with antibiotics, including anticoagulants such as warfarin. Tell the prescriber about all medicines, supplements and herbal products you use. This helps ensure treatment is both safe and suitable.

Can BV clear without antibiotics?

BV can sometimes improve without treatment, especially when there are no symptoms. However, if you have noticeable symptoms, an antibiotic is generally the most reliable way to clear the infection and relieve the odour or discharge.

Do not use leftover antibiotics or take medicines prescribed for someone else. They may not be right for your symptoms, could cause side effects and may delay the correct diagnosis. Over-the-counter washes, deodorants and douches are not treatments for BV and can upset the natural vaginal balance further.

What to do while you are being treated

You do not need to wash internally to feel clean. The vagina cleans itself, and douching or using scented products can make irritation and bacterial imbalance more likely. Wash the outside area gently with warm water or a mild, unperfumed soap if you wish, then pat dry.

It can help to avoid fragranced intimate washes, bubble baths, vaginal deodorants and strongly scented sanitary products while you have symptoms. Choose breathable underwear and change out of damp gym clothes or swimwear promptly if this is practical for you.

Sex is not usually harmful during treatment, but it may be more comfortable to wait until symptoms have settled. Condoms can reduce exposure to semen, which may affect vaginal acidity for some people. Be aware that certain vaginal creams can weaken latex condoms and diaphragms. Check the leaflet supplied with your treatment and ask a pharmacist if you need advice on contraception during treatment.

Male sexual partners do not normally need treatment for BV. If you have a female sexual partner, they may wish to seek advice if they have symptoms, as BV can occur between female partners.

If bacterial vaginosis keeps coming back

BV can recur, even after treatment has worked well. This is frustrating but common, and it does not mean you have done anything wrong. Return of symptoms may be linked to changes in vaginal bacteria after sex, periods, smoking, douching or simply individual susceptibility. Sometimes there is no obvious trigger.

If symptoms return soon after treatment, or you have repeated episodes, arrange a clinical review. You may need confirmation that it is BV rather than another condition, a different antibiotic or a longer treatment plan. Recurrent symptoms deserve proper assessment rather than repeated self-treatment.

There is mixed evidence for probiotics and supplements marketed for vaginal health. Some people choose to use them, but they should not replace prescribed treatment for symptomatic BV. A clinician or pharmacist can help you decide whether a product is worth trying alongside your usual care.

When to seek urgent medical advice

Contact a healthcare professional promptly if you have fever, severe lower tummy or pelvic pain, feel unwell, have unusual bleeding, or develop painful blisters or sores. These symptoms are not typical of uncomplicated BV and may need urgent assessment.

You should also seek advice if you are pregnant and think you may have BV, as your care may need to be tailored. Tell the clinician if you are trying to conceive, breastfeeding or have had an allergic reaction to an antibiotic in the past.

A private, straightforward route to treatment

For many adults, BV symptoms are sensitive and inconvenient to discuss face to face. An online consultation can provide a discreet way to explain your symptoms and medical history. If treatment is appropriate, a qualified prescriber can recommend it, with pharmacy support available if you have questions about using your medicine.

Yourchemists offers a simple online route for suitable patients seeking treatment for bacterial vaginosis. You complete a confidential consultation, and a prescriber reviews whether treatment is appropriate for you. If your answers suggest you need an examination, testing or more urgent care, you should be directed to the right service rather than given unsuitable treatment.

BV is common, manageable and nothing to feel embarrassed about. If your symptoms are new, severe, unusual or recurrent, getting the right advice early is the clearest way to protect your comfort and peace of mind.