Just on holiday in Spain (been here 9 days). Hot flushes have been extreme in this heat but now have a rash under my left armpit with little hair left.
Could this be related to the radiotherapy, but that finished mid April. The hot flushes do generate from the chest and upper arm areas
Hi Towersaf0ffd I doubt that the rash is connected to RT. Most of the side effects are localised to where the beams hit. Sounds more like a heat rash to me and sweating is making it worse. Maybe a trip to the local pharmacy.
Best wishes, David
Please remember that I am not medically trained and the above are my personal views.
I use to get Prickly Heat in hotter climates (knees,armpits elbows) very nasty rash. I used calamine lotion to good effect.
regards Richard
Think you're right. It's calmed down today. The hair loss is a bit weird though
Hormone therapy will cause hair loss. I found some areas of my body became prone to irritation following hair loss after radiotherapy/hormone therapy.
As the radiotherapy is delivered by a rotating beam it doesn't normally deliver enough in one position to cause irritation.
Rob (Sandberg)
Hi Rob (Sandberg)
Indeed - the HT does cause hair loss from the body. My armpits look like they have been waxed!! Chest hair virtually all gone and losing from around the body generally (but not my hairy arms! I did shave the backs of my hands before chemo which helped when having cannulas especially the bit when they pull the adhesive tape off!!)
I am probably heading for RT in the Autumn following chemo earlier in the year.
I have stayed away from swimming pools/jacuzzis since chemo as there is the possibility of skin irritation from the chlorine following the chemo...
Regards
KrisPy
Whatever cancer throws your way, we’re right there with you.
We’re here to provide physical, financial and emotional support.
© Macmillan Cancer Support 2026 © Macmillan Cancer Support, registered charity in England and Wales (261017), Scotland (SC039907) and the Isle of Man (604). Also operating in Northern Ireland. A company limited by guarantee, registered in England and Wales company number 2400969. Isle of Man company number 4694F. Registered office: 3rd Floor, Bronze Building, The Forge, 105 Sumner Street, London, SE1 9HZ. VAT no: 668265007