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Doctor insights on: Light Red Rash After Eating Fish

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My aunt has rashes and fever after eating fish. What could this be?

My aunt has rashes and fever after eating fish. What could this be?

Allergy: A rash consistently developing after ingesting fish strongly suggests an allergy. Your aunt should eliminate all fish and then introduce one type of fish at a time to see what type she is allergic to. An allergist may have other type of advice for her,however. ...Read more

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


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My 14month old son developed red spots around his mouth after eating some fish. It disappeared after a day. Should I test for allergy?

My 14month old son developed red spots around his mouth after eating some fish. It disappeared after a day. Should I test for allergy?

Mgt: Allergic reactions involve a wide variety of presentations. Sometimes contact rashes can cause a local reaction. Did he vomit, have a rash or any breathing difficulty? I would suggest seeing your PCP or having a virtual consultation online. Testing can be ordered by either physician. ...Read more

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Broke out in small red rash on shoulder after eating nacho cheese doritos. Could something in it cause this?

Broke out in small red rash on shoulder after eating nacho cheese doritos. Could something in it cause this?

No: Food and other rash producing substances cause a more diffuse, disseminated rash. Extremely rare to have a food rash so isolated to a small skin area. Watch for spreading. ...Read more

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Red, burning rash on cheek, ear and neck after eating chinese food, what is the cause?

Red, burning rash on cheek, ear and neck after eating chinese food, what is the cause?

Chinese rash: Not certain if this rash due to the Chinese food. It could be some sort of atopic dermatitis. As with most rashes they must be looked at by the physician in order to make accurate diagnosis. Please upload pictures of the rash and make an appointment to be seen by a dermatologist here on HealthTap. ...Read more

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Hands/feet/ankles swell (2x size) & get red blotchy rash after eating any type food & become numb but painful prickling & tired, weak, confused?

Hands/feet/ankles swell (2x size) & get red blotchy rash after eating any type food & become numb but painful prickling & tired, weak, confused?

Watch salt intake: This could be a problem of salt intake being too high. Other alternatives that could cause swelling are glutens and dairy. I would check in with your primary care doc for a complete checkup ...Read more

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Below scrotum and toward right leg I have a damp red rash that smells like fish. If scrubbed in shower produces slight pains. What is this?

Possible fungal: The damp red rash with a fishy smell may be from a longstanding fungal infection; however if sexually active, could be related to std. I would recommend over the counter antifingal cream ( lotrimin (clotrimazole) af) - apply a thin layer am/pm for 5 days- if not resolved- see your pohysician and get checked for stds. ...Read more

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Is it possible to be allegry to fish after eating fish for so many years?

Is it possible to be allegry to fish after eating fish for so many years?

Never say never...: Adults usually don't develop new allergies to foods. Sometimes an isolated incident of apparent food allergy is actually scombroid fish poisoning (google that), but if you keep getting the same symptoms after eating fish, it's time to see an allergist to help figure it out. ...Read more

Dr. John Chiu
2,561 doctors shared insights

Skin Rash (Definition)

A skin rash is a symptom in which a person has changes on part or all of his skin, such as color changes, bumps, blisters, oozing, peeling, ...Read more