Hi lovely people I had breast cancer two years ago which was dealt with. Since then I have tried letrozole, then Tamoxifen and lastly exemestane. I started Tamoxifen last June, in the hottest summer I've known for years.  Within a couple of weeks I had a horrendous red rash on my neck and chest area, and shoulders. I didn't know what it was and contacted the breast care clinic. They were unable to help me as they did not know what was happening. I had an appointment with the consultant in a few weeks and he did not know either.  Since then I have done lots of research on the Internet and have found American government papers that confirm Tamoxifen and the other medication I had taken can cause a UV allergy. I have since bought special clothing, Umbrella, wear factor 50 suncream and my husband has put special UV film on some of our windows at home. I am very frustrated that none of the medical community can help me I have seen a dermatologist privately but no one knows anything about this. I am having to work it all out by myself.

Apparently Tamoxifen also causes your body to heat up.  I was wondering whether anyone else had suffered from the same allergy.