I have this heat rash for about half a year now, and it’s getting hotter and hotter. (I live in Japan.)
I can’t even walk from my house to the train station and from train station to my school without getting attacked by heat rash anymore, and it’s only 20°!!
I can’t imagine what my body reaction will be once it gets to 30-35 degrees…I don’t know what to do, help.
-Jiro
David says
Hi Jiro,
Have you tried sweat therapy? If you look back at some of the older comments, you’ll find that some of us find relief by breaking a sweat through sauna, steam shower or cardio daily.
Anonymous says
have you taken any antihistamines?
David says
Yes, many. None of them worked for me. But other people have had some success with a variety of different antihistamines.
Anonymous says
I’m tried cardio..But my body just became red ..(Not the usual bumpy kind of rash that I get when I just walk around) as in my skin just becomes red all over, and no sweat comes out
JJ says
Vitamin D seems to be the answer. After reviewing lots of research around vitamin D supplements improving symptoms and quality of life of chronic urticaria, as well as other research pertaining to physical urticaria being cured via vitamin D supplements, your best bet seems to be vitamin D. The illusion of ‘sweating’ being effective is only temporary, the reality is that physical activity both indoors and outdoors increases plasma concentration of vitamin D, thus making your body use more of the vitamin D already stored in your fat. This solution is largely ineffective without obtaining more vitamin D from either sunlight or supplements. There is also a large amount of anecdotal evidence from individuals suffering from cholinergic urticaria that claim things like vitamin D supplements and fish oil has helped their symptoms dramatically. Supplements will take longer than direct sun exposure, but if you’re willing to tough it out, I would suggest talking to your doctor about sitting out in the sun for roughly 15 minutes a day until symptoms clear up in addition to taking around 2000 IU of supplements daily. I’m not a medical doctor, but these are things that have worked for me, so it would probably be better to check in with your doctor to see what your vitamin D levels are and see what he/she recommends you do about it.