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Underboob sweat…oh the glamour!

38 replies

noramoo · 13/07/2026 19:25

Well pretty much just as the title suggests really..!

I am a 36F and get awful sweaty heat rash under my boobs in summer particularly with the latest hot spell. It’s unbelievably itchy!

Does anyone have any tips or tricks? I try to wear cotton bras and always dry properly after a shower but beyond that I’m not sure what can be done Angry

OP posts:
mommybear1 · 13/07/2026 19:43

I’m a 36HH and I feel your pain. Liquid talc is my go to which helps prevent the rash but it’s not foolproof it does help but not cure. Someone told me to try driclor but I found it too harsh - maybe worth a try for you? I’ve tried Megababe bust dust but that did nothing. So I’m still looking for a solution 😬

Sparrowsandbudgies · 13/07/2026 19:47

I just use standard spray anti perspirant - Sure at the moment- under each of my boobs when I get dressed. Seems to help a bit. I’m a size 36G

hipbunny · 13/07/2026 19:49

You can buy these absorbent pads on Amazon. They are a game changer. They sit under your boobs which keep them in place. Under bra liners. I found them a couple of years ago and no more rash.

Ratherhaveacupofteaandabiscuit · 13/07/2026 20:03

I am 36GG and know exactly what you mean.

Change my bra twice a day, sleep in support vest with shelf type thing, twice or thrice daily wash with very careful drying and apply sudocrem if I get a rash.

Also lay on my back holding boobs out of the way to air the area.

It’s a nightmare.

I would happily have the blimmin things removed if the NHS would do it.

FWC2026 · 13/07/2026 20:07

Do you wear a clean bra everyday? The only time I've had a problem is if I've reworn a bra, even if it's been aired overnight.

palona · 13/07/2026 20:42

After I shower I ahem, air dry the underboob, then put a light dusting of Daktarin powder in the crease. I find it brilliant, it keeps the redness at bay and seems to keep it dry and from rubbing too much IYSWIM.

The rash could be intertrigo (google it), which is very uncomfortable and unsightly, I had it and used the Daktarin, and never got it again. But I use it the minute I feel any irritation.

Hope that might help you.

TeenLifeMum · 13/07/2026 20:43

I use antiperspirant.

beigetriangle · 13/07/2026 20:48

just use your roll on under boob as well

novalia89 · 14/07/2026 00:09

No, but I sometimes find sports bras worse because they push everything together and create a sweaty shelf. I also get smelly underboob in the summer so if anyone has any advice too? I'm always washing with soap, dettol soap and then antifungal spray or antifungal cream. The rash can be sign of fungus.

My underboob sweats like crazy just before my period too.

Sometimes I swap to the very very thin mesh bras for aeration but to keep it all lifted and apart.

Cantonet · 14/07/2026 00:18

I get this and am a 34 DD.
Mine responds to steroid ointment as I have a tendency to eczema. Harsh cleaning & chemicals makes mine a lot worse. Cleaning with a gentle cleanser like Cerave and careful drying after helps.
Plus exposure to natural sunlight if possible really helped me.

YeastAndCheeseInfatuation · 14/07/2026 00:19

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BratPitt · 14/07/2026 00:27

Stick deodorant under your boobs after a shower (obviously dry properly first). Spray/roll on deodorant doesn't work as well as a stick one.
If you do get a rash under there, then sudocreme fixes it really quickly.

HeddaGarbled · 14/07/2026 00:30

Cuticura talc fixed it for me - you can get it from Amazon.

DogSnufflySnout · 14/07/2026 00:34

Ratherhaveacupofteaandabiscuit · 13/07/2026 20:03

I am 36GG and know exactly what you mean.

Change my bra twice a day, sleep in support vest with shelf type thing, twice or thrice daily wash with very careful drying and apply sudocrem if I get a rash.

Also lay on my back holding boobs out of the way to air the area.

It’s a nightmare.

I would happily have the blimmin things removed if the NHS would do it.

Oh I do the “air-drying of the boobs” it does seem to help!

OP, I asked a chemist for advice several years back, and was told Canestan cream is good for the itchy rashes underneath the boobs.
I sympathise, big boobs in the weather is awful!

AnAutumnCrow · 14/07/2026 00:38

Hibiwash (formerly Hibiscrub) is a great replacement for soap and shower gel in areas prone to sweat and infections.

Boots sells it. It combats fungal, bacterial and viral infections.

ChittyChittyBoomBoom · 14/07/2026 00:47

Medipure talc has been an absolute game changer for me. You can get it in home bargains for about £1. Never had a rash since using it.

Aparecium · 14/07/2026 07:55

If the underboob band mark area (or any skin-fold or skin-to-skin contact area) is itchy and red, it is likely to have a fungal infection. If you shower in the evening, air-dry, and sleep bra-less so that nothing irritates the under-boob, but find that you still have a red mark in the morning - even if it is not itchy - then you very likely still have a fungal infection.

IME the only solution is to treat the infection. Otherwise, no matter what you do, it keeps coming back.

Shower twice a day with gentle soap or shower gel on a washcloth. If you you cannot shower twice a day, then at least clean the affected area that way. Towel dry. (I use a fresh facecloth every day to dry that area while the infection is active, but I don’t know if that is strictly necessary.)

Apply Canesten to clean, dry skin twice a day.

Once the redness is gone, continue applying Canesten in the morning, but apply talc in the evening for another week. Then switch to talc morning and evening for as long as you wish.

Wear a fresh bra every day while treating the thrush.

Wear a fresh bra every day that you get sweaty.

Do not put anti-persperant or deodorant on your underboob until the thrush is completely cleared.

noramoo · 14/07/2026 08:52

Thanks all - sorry to hear so many others struggle with this, it's such a nightmare! The absorbent pads sound like a good idea...

OP posts:
GotALionInMyPocket · 14/07/2026 08:54

Dove all over deodorant

GotALionInMyPocket · 14/07/2026 08:54

Or maybe that thing you put between thighs for chub rub?

MrWaldonsLeg · 14/07/2026 09:01

I use Dettol laundry stuff in my washing to remove any bacteria from my bras to help prevent any skin rash. I also wear a crop top thing in bed so my boobs are lifted off my body. I am a 34FF.

I spray deodorant under my boobs. You can get whole body deodorant.

Soontobe60 · 14/07/2026 09:05

I use a medicated talc that a Spanish friend told me about. After every shower, make sure the skin is dry (use a hairdryer!) and apply the talc under each breast. If you’re wearing a bra that pushes them together, put a bit between them once your bra is in.
I have no itchy rash any more since using it. (If you know anyone who’s going to Spain ask them to get some from the chemist - it’s much cheaper than Amazon!)

www.amazon.co.uk/ARTELAC-SPLASH-8470001527295-TALQUISTINA-Powders/dp/B009SM6F6O/ref=asc_df_B009SM6F6O?mcid=0b48835e939934129f1b1e95d1737c30&tag=googshopuk-21&linkCode=df0&hvadid=696352643970&hvpos=&hvnetw=g&hvrand=1834705597004968063&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9046607&hvtargid=pla-606537343101&psc=1&hvocijid=1834705597004968063-B009SM6F6O-&hvexpln=0&gad_source=1

coolcahuna · 14/07/2026 09:08

Yes terrible!!!! It's awful! Also vote for talc here, I just use the classic powder one. Also I find underwire bras better than the moulded ones, keeps boobage a bit more separate.

3flyingducksarrive · 14/07/2026 09:31

3B anti chafe cream works for me.

Tontostitis · 14/07/2026 09:33

32 G here I use talcum powder and in extreme heat cotton wool pads lift them and absorb