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Doctor insights on: Photosensitivity Rash

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Dr. Austina Cho
47 doctors shared insights

Photosensitivity Rash (Overview)

Photodermatitis is an abnormal skin reaction to sunlight, or more specifically to ultraviolet (UV) rays. It can be acute (sudden) or chronic (ongoing). Photodermatitis 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.


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What causes photosensitivity rash?

What causes photosensitivity rash?

Many causes: Causes for photosensitivity) can be classified into 1) those caused by the presence of an underlying skin condition (eg., lupus); 2) chemicals/drugs topical or ingested which are photosensitizers (eg., tetracyclines, dyes); 3) genetic diseases (eg., xeroderma pigmentosa); 4) metabolic disorders (porphyrias) and 5) idiopathic (unknown). ...Read more

Dr. Austina Cho
47 doctors shared insights

Photosensitivity Rash (Overview)

Photodermatitis is an abnormal skin reaction to sunlight, or more specifically to ultraviolet (UV) rays. It can be acute (sudden) or chronic (ongoing). Photodermatitis 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.


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I have recurring flares of rashes, joint pain, muscle aches, debilitating fatigue, dizziness. I have photosensitity and one episode of my WBC at 2.0 years back. My ANA is 6:40. I'm on plaquenil. Why are all my other antibodies neg for lupus?

I have  recurring flares of  rashes, joint pain, muscle aches, debilitating fatigue, dizziness. I have photosensitity and one episode of my WBC at 2.0 years back.  My ANA is 6:40.  I'm on plaquenil. Why are all my other antibodies neg for lupus?

Maybe SLE maybe not.: Diagnosis of rheumatologic disease is generally based on symptoms with support from lab. Sounds like you have a rheumatologic disease and are being treated with a rheumatologic agent perhaps by a rheumatologist. They can explain your particular situation better, but suffice it to say tests are not always right and a single test does not generally make or break a diagnosis. ...Read more

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Treating Skin Tags (Checklist)

Do not treat them yourself
Once
Avoid picking at them
Once
Have them removed if needed by a doctor
Once
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What causes photosensitivity rash?

Many causes: Causes for photosensitivity) can be classified into 1) those caused by the presence of an underlying skin condition (eg., lupus); 2) chemicals/drugs topical or ingested which are photosensitizers (eg., tetracyclines, dyes); 3) genetic diseases (eg., xeroderma pigmentosa); 4) metabolic disorders (porphyrias) and 5) idiopathic (unknown). ...Read more

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Living with Skin Cancer (Checklist)

Avoid sun exposure between 10 am and 2 pm
daily
Apply sunscreen
2x day
Wear a hat outdoors on sunny days
daily
See dermatologist for check ups
2x year
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I have ANA 1:640, flares joint swelling w/redness, photosensitivity, rashes, sharp chest pain, raynauds, chronic dry mouth, eyes. Sed and CRP always neg. Why?

I have ANA 1:640, flares joint swelling w/redness, photosensitivity, rashes, sharp chest pain, raynauds, chronic dry mouth, eyes. Sed and CRP always neg. Why?

Lupus: Lupus is a chronic, autoimmune disease that can damage any part of the body (skin, joints, and/or organs inside the body). Chronic means that the signs and symptoms tend to last longer than six weeks and often for many years. In lupus, something goes wrong with your immune system, which is the part of the body that fights off viruses, bacteria, and germs ("foreign invaders, " like the flu). ...Read more

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My ANA is 1:320 all other labs r normal. Rheumatoglist says Stills. Is this possible with the + ANA ? I have rashes, photosensitivity, fatigue

My ANA is 1:320 all other labs r normal. Rheumatoglist says Stills. Is this possible with the + ANA ? I have rashes, photosensitivity, fatigue

See below: Do you have joint pains? If not there may be reason to reconsider the diagnosis. It may be useful to get a second opinion. See this site for info on Still's disease. http://www.mayoclinic.org/diseases-conditions/adult-stills-disease/basics/definition/CON-20026609 ...Read more

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Treating a Skin Abscess (Checklist)

Clean the wound thoroughly
Once
If the wound is draining on its own, regularly change a dressing
Once
If it is not draining, or there is redness around it, see your doctor
Once
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Can someone have lupus even if the only symptom is bilateraljoint pain in hands, shoulder, knees, wrist?(-)rashes, photosensitivity, weakness, fatigue, fever

Can someone have lupus even if the only symptom is bilateraljoint pain in hands, shoulder, knees, wrist?(-)rashes, photosensitivity, weakness, fatigue, fever

Of Course; ; Hope No: Lupus erythematosus is a notoriously variable disease process, from person to person ; time to time. Since which portions of their body the person's immune system is currently targeting, ; to what degree, varies widely, the consequences also vary widely. Even with high quality lab, diagnosis is problematic ; while treatment outcome, by only medications, can help, outcomes are rarely very good. ...Read more

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Dr. Cornelia Franz
1,059 doctors shared insights

Rash (Definition)

Most bumps and blotches on a newborn baby are harmless and clear up by themselves. By far the most common skin problem in infants is diaper rash. Diaper rash is an irritation of the skin caused by dampness, urine, or feces. Most babies who wear diapers will have some type of diaper rash. However, there are other skin disorders that can cause rashes. These are usually not serious unless ...Read more


Photosensitivity (Definition)

Oversensitivity of skin to light. Photosensitivity can be a side effect of medications or result from diseases, such as lupus. Treatment depends on the severity of the reaction and the cause. Photosensitivity can be prevented by avoiding skin ...Read more