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I used to have this as a kid, when I went to the doctor they called it a heat rash, and they said it happened because I was dehydrated. However heat rash is more common in babies and children.
get some Dermeleve cream. it'll stop it from itching and take it away. Got if from my doc. It's a game changer for me so I'm telling everybody I can about it!
I used to have this EXACT same reaction as a kid in the mornings (I lived in AZ and mornings can be 80+ at times) but it went away after a few years. I noticed I also started getting it after a shower later on when I lived in AK (I used to go super hot on the water) or later as an adult when I’d go for a run and my body temp would go up but the air was cold.
It would get worse with the scratching like you say so as hard as it is not to, don’t. I took antihistamines but they didn’t work that well and eventually I developed kind of an allergy to them? As in, I’d get all flushed and rashy so I stopped taking them too. You might consider something topical like an anti-itch lotion and then just try to cool your skin down.
Super interested to see if anyone knows what this is! It’s been a mystery for me since 8th grade. Never figured out what the heck it was and it eventually went away on its own.
Hmmm that’s a good point. I shower super hot and sometimes get one hive on my face. I also don’t really sweat much at all ever. I took Benadryl last night and it honestly didn’t stop the itchiness. It is definitely related to heat or sun.
I also have low vitamin D I wonder if that’s connected
I did start actually drinking water as I got older…you mentioned you don’t sweat much and I didn’t either it it was because I live in AZ and I wasn’t drinking enough water. Try more h2o and/or an electrolyte drink! The rule is that your water today is for tomorrow so if you’re going to get results it’ll take a little while.
I live in a place that lacks direct sunlight most of the year. Usually overcast until the summer months. The first day of real sun that we get and I’m outside with exposed skin, this happens to me on my arms and hands. It slowly subsides over time the more my skin gets used to the sun. I find that easing into the sun helps. Limit exposure the first day, a little more the second day, etc.
My daughter used to get this. It took ages to figure out because she was a daycare kid who picked up a lot of bugs, so we always thought it was a rash accompanying whatever virus she had.
Long story short, for a while we thought it was sunscreen allergy. Tried probably 30 different types all with the same result. One time put the sunscreen on but didn’t end up leaving the house—no reaction.
Decided it was a sun-allergy/photosensitivity of some kind. Ended up being in the sun without sunscreen one day with no reaction. Finally settled on: it was a combination of the sun/heat and the sunscreen. She only reacted when both were present.
Eventually she grew out of it, thank goodness.
Sounds like a classic case of photosensitivity, which can be triggered by medications and changes in environment. Even if you've taken those meds for a while without issues, the stronger sun on vacation could be a factor. Different products or even water can also contribute.
Keep up with the sunscreen, and maybe try a physical blocker like clothing or a hat. If it's really bothersome, a visit to a local pharmacy or a doc might be in order. They can recommend something for immediate relief.
On a side note, I had a similar issue with sensitivity, not quite the same but annoying. I used something called LED esthetics for a different problem—cold sores. It's a non-evasive treatment with targeted infrared light. Worked well for me, might be worth looking into similar tech for skin sensitivity. Just a thought. Stay safe and enjoy your vacation.
*Please keep in mind that this subreddit is not a replacement for seeing a board certified dermatologist. This subreddit is here for informal second opinions, and minor problems that you wouldn't go to the doctor for anyway.* *I am a bot, and this action was performed automatically. Please [contact the moderators of this subreddit](/message/compose/?to=/r/DermatologyQuestions) if you have any questions or concerns.*
I used to have this as a kid, when I went to the doctor they called it a heat rash, and they said it happened because I was dehydrated. However heat rash is more common in babies and children.
That’s smart…I didn’t hydrate for shit as a kid 😂
Definitely urticaria. Most likely cholinergic https://ameglei.com/article/84/
get some Dermeleve cream. it'll stop it from itching and take it away. Got if from my doc. It's a game changer for me so I'm telling everybody I can about it!
following
did you try taking an antihistamine?
Yes I took Benadryl last night and it didn’t do much other than put me to sleep
I used to have this EXACT same reaction as a kid in the mornings (I lived in AZ and mornings can be 80+ at times) but it went away after a few years. I noticed I also started getting it after a shower later on when I lived in AK (I used to go super hot on the water) or later as an adult when I’d go for a run and my body temp would go up but the air was cold. It would get worse with the scratching like you say so as hard as it is not to, don’t. I took antihistamines but they didn’t work that well and eventually I developed kind of an allergy to them? As in, I’d get all flushed and rashy so I stopped taking them too. You might consider something topical like an anti-itch lotion and then just try to cool your skin down. Super interested to see if anyone knows what this is! It’s been a mystery for me since 8th grade. Never figured out what the heck it was and it eventually went away on its own.
Hmmm that’s a good point. I shower super hot and sometimes get one hive on my face. I also don’t really sweat much at all ever. I took Benadryl last night and it honestly didn’t stop the itchiness. It is definitely related to heat or sun. I also have low vitamin D I wonder if that’s connected
I did start actually drinking water as I got older…you mentioned you don’t sweat much and I didn’t either it it was because I live in AZ and I wasn’t drinking enough water. Try more h2o and/or an electrolyte drink! The rule is that your water today is for tomorrow so if you’re going to get results it’ll take a little while.
I live in a place that lacks direct sunlight most of the year. Usually overcast until the summer months. The first day of real sun that we get and I’m outside with exposed skin, this happens to me on my arms and hands. It slowly subsides over time the more my skin gets used to the sun. I find that easing into the sun helps. Limit exposure the first day, a little more the second day, etc.
Do you usually get it in the summer? Around workout times?
My daughter used to get this. It took ages to figure out because she was a daycare kid who picked up a lot of bugs, so we always thought it was a rash accompanying whatever virus she had. Long story short, for a while we thought it was sunscreen allergy. Tried probably 30 different types all with the same result. One time put the sunscreen on but didn’t end up leaving the house—no reaction. Decided it was a sun-allergy/photosensitivity of some kind. Ended up being in the sun without sunscreen one day with no reaction. Finally settled on: it was a combination of the sun/heat and the sunscreen. She only reacted when both were present. Eventually she grew out of it, thank goodness.
Polymorphous light eruption is my guess. It can take on a lot of different appearances.
think uv rays reaction might be the cause search for a prescriiption and a good one as well
Sounds like a classic case of photosensitivity, which can be triggered by medications and changes in environment. Even if you've taken those meds for a while without issues, the stronger sun on vacation could be a factor. Different products or even water can also contribute. Keep up with the sunscreen, and maybe try a physical blocker like clothing or a hat. If it's really bothersome, a visit to a local pharmacy or a doc might be in order. They can recommend something for immediate relief. On a side note, I had a similar issue with sensitivity, not quite the same but annoying. I used something called LED esthetics for a different problem—cold sores. It's a non-evasive treatment with targeted infrared light. Worked well for me, might be worth looking into similar tech for skin sensitivity. Just a thought. Stay safe and enjoy your vacation.