You’ve bought the cream. Again. And it still hasn’t worked. If you’ve been treating yourself for thrush for weeks — or months — and something still feels wrong, there’s a real chance you’ve been treating the wrong condition entirely. You are not imagining it, and you are not failing to get better because you’re doing something wrong.

Watch first: Is it thrush, BV or something else? A GP tells you how to tell the difference

Why vaginal itching is so hard to self-diagnose

The honest truth? Thrush is the condition every woman has heard of — so it becomes the default diagnosis. You itch, you buy the cream, it doesn’t fully work, you buy it again. What most women don’t realise is that there are at least five distinct conditions that cause vaginal and vulval itching, and they each need a completely different treatment. Using thrush cream on bacterial vaginosis (BV), for example, doesn’t just fail — it can make BV worse.

This post walks you through all five, what makes each one different, and exactly what to say to your GP to get the right answer faster.

The 5 real causes of vaginal and vulval itching

1. Thrush (vaginal candidiasis)

Thrush is a yeast infection caused by an overgrowth of Candida albicans — a fungus that normally lives in your vagina in small amounts. Yes, it’s the most common cause of vaginal itching, but it’s also the most over-diagnosed.

What it actually feels like:

• Intense itching and soreness around the vagina and vulva
• Thick, white, cottage cheese-like discharge — no strong smell
• Burning sensation when you wee or during sex
• Redness and swelling of the vulval skin

What causes it: following a course of antibiotics, pregnancy, diabetes, a weakened immune system, tight synthetic underwear, or hormonal changes around your period.

Treatment: An antifungal — either a pessary (inserted vaginally) or a single oral tablet, plus an external cream for the skin. Available over the counter, but if it keeps coming back, you need a GP appointment — recurrent thrush can signal undiagnosed diabetes or immune issues.

2. Bacterial vaginosis (BV)

BV is one of the most misdiagnosed vaginal conditions because most women assume their symptoms must be thrush and treat with the wrong medication.

BV happens when the natural balance of bacteria in your vagina shifts — specifically when Gardnerella and other anaerobic bacteria overgrow. It is not a sexually transmitted infection, and it is not caused by poor hygiene. In fact, overwashing with feminine hygiene products and douching are among the most common triggers.

What it actually feels like:

• Itching — but more often a grey or white, thin, watery discharge
• A distinct fishy smell, especially after sex or during your period
• Little or no soreness (unlike thrush)

Treatment: A course of antibiotics — most commonly metronidazole, taken as a tablet or used as a vaginal gel. This is prescription-only in the UK. Not the pharmacy thrush cream.

3. Contact dermatitis

This one gets missed constantly. Contact dermatitis is a skin reaction — not an infection — triggered by something that has touched your vulval skin.

Common culprits: bubble baths, scented wipes, laundry detergents, sanitary pads with fragrance, latex condoms, lubricants, or even toilet paper.

What it actually feels like:

• Itching, burning, and redness of the outer vulval skin
• May look inflamed or have a rash
• No unusual discharge
• Symptoms appeared after changing a product

Treatment: Remove the trigger. A short course of mild topical steroid cream (prescribed by your GP) settles the reaction. Antihistamines for symptom relief if severe.

Download the free Know Your Lady Bits Guide — understand your vulval skin and what’s normal for you

4. Lichen sclerosus

This is the one that gets missed for years. Lichen sclerosus is a chronic inflammatory skin condition affecting the vulval and perianal skin. It can take an average of 5–10 years to diagnose because it looks and feels like thrush — and some women are often told that’s exactly what it is.

What it actually feels like:

• Persistent, intense vulval itching — often worse at night
• White, patchy, thinning skin on the vulva
• Tearing, splitting, or bleeding of the skin, especially with sex
• Scarring of the vulval architecture over time if untreated

Treatment: A high-potency topical steroid cream (clobetasol propionate) applied to the vulva. This does NOT cure lichen sclerosus, but it controls it and prevents scarring. You must get a prescription from a GP or gynaecologist and remain on a specific long-term regimen.

Without treatment/monitoring, there is a small risk of developing vulval cancer from lichen sclerosus. Another reason to ensure you do not keep treating ‘thrush’ endlessly.

5. Trichomoniasis

Trichomoniasis (or “trich”) is a sexually transmitted infection caused by a tiny parasite called Trichomonas vaginalis. It’s very common and very treatable — but it can be silent for months.

What it actually feels like:

• Itching, burning, and redness of the vagina and vulva
• Yellow-green, frothy discharge with an unpleasant smell
• Discomfort when weeing or during sex
• Sometimes no symptoms at all

Treatment: Antibiotics — metronidazole, the same antibiotic used for BV. Your partner also needs treatment, or you will reinfect each other. This is a conversation your GP can help you navigate.

Treatment comparison at a glance

What to say to your GP

If you’ve treated yourself for thrush more than twice with no full resolution, walk into your GP appointment with this:

“I’ve used antifungal treatment twice and it hasn’t fully worked. Can I have an examination and swabs if necessary, to confirm what’s causing this before I try anything else?”

This request changes the entire consultation. A high vaginal swab takes 30 seconds and gives you an actual answer instead of repeat guesses. A proper look at the vulval skin can identify lichen sclerosus.

When to seek help — red flag guide

The bottom line

Vaginal itching almost always has a clear, treatable cause — but only if you get the right diagnosis first. Buying thrush cream because it’s the only option on the shelf is completely understandable, but if it hasn’t worked twice, your body is telling you it needs something different. Book the appointment. Give the details of your symptoms, and let the doctor examine and run tests. This will provide a proper answer, not another guess.

Have you been treated for thrush that turned out to be something else? You are far from alone — come and share your story.

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Medical disclaimer: This post is for educational purposes only and does not constitute medical advice. Reading this content does not create a doctor-patient relationship with Dr Sylvia or AskAwayHealth. Always consult your own GP or healthcare provider about your individual circumstances. If you are experiencing a medical emergency, call 999 or attend your nearest A&E.