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Painful red rash on sun exposed areas
Photodermatitis is an abnormal skin reaction to sunlight, or more specifically to ultraviolet (UV) rays. It can be acute (sudden) or chronic (ongoing). Photo dermatitis occurs when your immune system reacts to UV rays. You may develop a rash, blisters, or scaly patches. Exposure levels and reactions differ for every person. Several factors can make your skin sensitive to light UV rays, including having an inherited tendency to photosensitivity, taking certain medications, or being exposed to plants in the Apiaceal or Umbelliferae family, including weeds and edible plants, such as hogweed, cowbane, carrot, parsnip, dill, fennel, celery, and anise.
Dr. Keegan Duchicela reviewed this
15 year experience in family medicine
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Related questions
A 39-year old female asked:
I have a rash on my side that looks red and blistered. It is painful and itchy. What could it be?
1 doctor answer • 2 doctors weighed in
A 18-year old male asked:
I have a band of a rash on my lower back consisting of many small blisters. They are red and the rash is spreading. It is quite painful as well?
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A 25-year old female asked:
I broke out in a red, mostly flat rash that covers most of my face and body. It's very itchy, sun-sensitive and migrates around rapidly. What is this?
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A 36-year old asked:
Will these painful sun rashes scar my skin?
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What are some reasons why I have a painful red rash on my abdomen?
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What is the definition or description of: Painful red blister rash?
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A member asked:
What is this hard red painful bump on my nose I'm 15 and got sun burnt?
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A 24-year old female asked:
What is the most likely cause of a left side swollen painful clavical with a non itchy red rash?
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A 39-year old female asked:
I develop itchiness, redness and painful rashes in my neck when i sweat. What could it be? And how to manage it?
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A 57-year old male asked:
For 2 days I have a hard, painful bump on my back, the size of a fingerprint. It is maybe 5 cm tall. It's red, with no pus or skin lesion/rash. ??
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A 45-year old female asked:
I have an area on my forearm by my elbow that is swollen and extremely painful to touch it's not red, warm and no rash just came out of nowhere ideas?
1 doctor answer • 1 doctor weighed in
A 38-year old asked:
Red, painful rash, abdominal pain. What could be wrong?
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A 45-year old asked:
Why is my penis red & I have a painful scrotum & penile rash?
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A 27-year old female asked:
I have a red bumpy rash on the inside of my thigh near my genitals. It was just a single itchy bump but now it is painful. What is this?
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A 27-year old male asked:
I have red spots on the top of my head and a large "rash" (looks like severe sun spots/freckles). What's going on with me? Are they related?
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A 26-year old asked:
Can sunscreen irratitate yound childrens skin? I always have him wear a sun hat but his face seems red and rashy after the sunscreens appilied
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A member asked:
rash on chest not itchy or painful. Red, generally more round but not perfectly round, spots seem to by "dry" skin. Skin can be scratched off.?
1 doctor answer • 1 doctor weighed in
A 27-year old asked:
Rash/red spots on torso, looks to be under the skin. Not itching or painful. Just not pretty to look at. I have had for about 4-5 weeks. Any ideas?
1 doctor answer • 2 doctors weighed in
A 20-year old male asked:
I have a cut on my ribs that seems infected. Recently ive started seeing a rashy group of red bumps trailing off up onto my chest. It's very painful?
1 doctor answer • 1 doctor weighed in
A member asked:
My boyfriend has a large red/pink bump on his leg that is very painful and seems to be filled with a liquid or puss that's surrounded by a rash-ish looking thing. He has gotten it twice and it went away the first time before we could go to the doctors. Is
1 doctor answer • 1 doctor weighed in
A 24-year old asked:
I have a rash on my stomach, it itches a little but is also painful. Its just a few red bumps. What could it be?
1 doctor answer • 1 doctor weighed in
A female asked:
Red bumpy painful itchy rash in reaction to adhesive spray used for pt taping. Discontinue use or just treat rash after?
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A 25-year old female asked:
Red bump on pubic area and not painful. Noticed it and red rash on chest and shoulder for a week that's itchy. What could it be? Please help?
1 doctor answer • 2 doctors weighed in
A 20-year old female asked:
I forgot to mention, I have a very red rash on my thyroid goitre, it's painful and itchy and looks like it's getting bigger, what should I do??
1 doctor answer • 1 doctor weighed in
A 34-year old asked:
I have small, painful rashes on my back and legs. My eyes are red and I have swelling everywhere. What is happening?
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A 31-year old asked:
What causes a very painful, Red, big rash under armpit that won't go away for the last 2 weeks?
1 doctor answer • 1 doctor weighed in
A 20-year old female asked:
For 2 weeks I have had discomfort near the vagina. I have a red rash and also some kind if cut that is very painful especially when the skin stretches?
1 doctor answer • 1 doctor weighed in
A 36-year old male asked:
C shaped,deep red/purple rash to bil armpits. has "rope burn' appearance-poss staph/strep inf.- extremely painful -how to relieve discomfort?
2 doctor answers • 2 doctors weighed in
A 29-year old female asked:
I have a red bumpy itchy painful rash over a surgical incision that is a year or so old ive had it for almost two months. Its right above pubic line?
1 doctor answer • 1 doctor weighed in
A 35-year old female asked:
10 yr old daghtr has small bumps on chest and now on back. Itchy and painful but not red. Not heat rash or eczema, this is different. No new soaps. ??
1 doctor answer • 1 doctor weighed in
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