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Doctor insights on: What Can Cause A Red Rash That Lasts For More Than Three Weeks

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Dr. John Chiu
2,641 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


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Can whole body itching and skin redness (rash-like when touched) from cipro (ciprofloxacin) last for more than a week?

Can whole body itching and skin redness (rash-like when touched) from cipro (ciprofloxacin) last for more than a week?

Unlikely...: The abx should be out of your system by now, and the skin reaction should at least be fading. If not, consider reviewing your current med list to find your culprit - good luck.

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I am having rash on arm, chest and shoulders, skin redness or irritation and skin rash (episodic itchiness, uniform tiny bumps, skin colored mostly). A nurse said it was allergic reaction & gave me centraben cream. Can allergy last more than a week?

I am having rash on arm, chest and shoulders, skin redness or irritation and skin rash (episodic itchiness, uniform tiny bumps, skin colored mostly). A nurse said it was allergic reaction & gave me centraben cream. Can allergy last more than a week?

Yes: If you are exposed to the item to which you are allergic, the symptoms will persist, even for years. It would be prudent to consult your doctor. For good health - Have a diet rich in fresh vegetables, fruits, whole grains, milk and milk products, nuts, beans, legumes, lentils and small amounts of lean meats. Avoid saturated fats. Drink enough water daily, so that your urine is mostly colorless. Exercise at least 150 minutes/week and increase the intensity of exercise gradually. Do not use tobacco, alcohol, weed or street drugs in any form. Practice safe sex, if you have sex. Get HPV vaccine

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What would cause a bumpy red rash just on the outside of the elbows, and on one more than the other?

What would cause a bumpy red rash just on the outside of the elbows, and on one more than the other?

Well: Rashes like this in general can be non-specific inflamation infection or contact dermatitis. Recommend Healthtap consult with pictures to get a specific diagnosis and treatment

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I have a red scaly odd oval shaped rash on my leg, just below the knee. This occurred after I fell on a concrete step last November which caused a hem?

I have a red scaly odd oval shaped rash on my leg, just below the knee. This occurred after I fell on a concrete step last November which caused a hem?

Rash: It is almost impossible for us here on health tap to tell what the rash is because we can't see it. Your best bet is to go to the doctor and get specific treatment for this rash.

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What could be diagnosis for having rashes at the back, dry cough for more than a month, fatigue, redness of face and weight loss? Male, 50s

What could be diagnosis for having rashes at the back, dry cough for more than a month, fatigue, redness of face and weight loss? Male, 50s

Dry cough: From smoking or allergies/ postnatal drainage. Fatigue, weight lost and rash warrants a visit to your physician. You need complete physical examination and lab work to rule out immune disorders, cancer, thyroid issues and other medical conditions.

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What could be diagnosis for having non-itchy rashes at the back, dry cough for more than a month, fatigue, redness of face and weight loss? Male, 50s

What could be diagnosis for having non-itchy rashes at the back, dry cough for more than a month, fatigue, redness of face and weight loss? Male, 50s

Have it evaluated: It is impossible to say without being able to do a physical exam and know the results of x rays and lab studies. The cough needs evaluation in a smoker because of the high risk of major lung issues. See a doctor soon.

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I have had a rash on various body parts for the last four days that presents as red, itchy welts that then turn hot and cause muscle pain. Any ideas?

I have had a rash on various body parts for the last four days that presents as red, itchy welts that then turn hot and cause muscle pain. Any ideas?

Could be drug allerg: Drug allergies are a common cause of an itching rash. If you are taking any new medicines lately added, stop it for a couple of days. In the meantime, you can use Benadryl (diphenhydramine) once or twice a day...It might help reduce the allergy. But it can also make you sleepy, so take it at night and see if it helps.

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Can herpes or a vaginal yeast infection cause a skin rash throughout the body? I have a skin rash that develops first with an itch and then a round red bump appears. The first few where limited to my lower left arm and looked more like bites but then dis

Can herpes or a vaginal yeast infection cause a skin rash throughout the body? I have a skin rash that develops first with an itch and then a round red bump appears. The first few where limited to my lower left arm and looked more like bites but then dis

It: It would be very unusual for herpes or vaginal yeast infection to spread throughout the body. Other medical issues, such as MRSA (methicillin resistant staph aureus), eczema, psoriasis, pityriasis, or other dermatological issues can cause a rash on the body. Trying a mild anti-bacterial soap and mild lotion may be helpful, but if it is a worsening rash, or if the patient had fever or new symptoms, then the patient should be medically evaluated.

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My daughter has red bumps all over her except her nose today I noticed three more on her chest, is this baby acne, eczema or heat rash?

My daughter has red bumps all over her except her nose today I noticed three more on her chest, is this baby acne, eczema or heat rash?

Red bumps: Not knowing your child's age I would rule out baby acne. Eczema doesn' t usually cause bumps. She might heat rash but could also have the hives. For heat rash cut down on room temperature and/ or clothes child is wearing. For hives you can try benadryl (diphenhydramine).

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Very dry rashes on my butt. They've been there for a while. They aren't red, more like white. They don't itch but they bother me! Please help?

Very dry rashes on my butt. They've been there for a while. They aren't red, more like white. They don't itch but they bother me! Please help?

Eczema or ringworm: If it's been there for a "while" (week? Month? Year?), it is likely to be in the eczema category, although it could be a ringworm (fungal infection). There are other, rarer possibilities. A dermatologist will be able to tell you which it is, and prescribe appropriate treatment.

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Do cholesterol medication cause red rashes?

Do cholesterol medication cause red rashes?

Rash: Virtually any medicine can cause rash. It isn't particularly common w. Ith most cholesterol meds.

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What causes my baby to have scaly red rashes during the winter?

What causes my baby to have scaly red rashes during the winter?

Atopic Dermatitis: What you are describing is probably atopic dematitis or "eczema". This is a dry sensitive skin type that can be affected by dry winter air. Simple measures include no soap, bathe every 2-3 days only, daily moisturizer like curel. In some cases, medications are necessary/helpful. Consult your pedi.

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Can toxins and gall baller problems cause red ichy rashes on face?

Can toxins and gall baller problems cause red ichy rashes on face?

What toxins? ...: Many things might cause this. If you want the best chance for help, see a dermatologist.

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Full body itching just came on in the last 2 hours. No rash, no redness, only new bites are from mosquitos that usually don't give me reactions?

Full body itching just came on in the last 2 hours. No rash, no redness, only new bites are from mosquitos that usually don't give me reactions?

Mosquitos: Sound like you have reactions now. Big ones out up there this time of year. Also other bugs that bite up there. Did you take anything or rub on anything for bites. Any hives? If so see Dr.

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I've had circular rashes appear on my body recently and it seems to be spreading and heat seems to make them red and standout more. It won't go away?

I've had circular rashes appear on my body recently and it seems to be spreading and heat seems to make them red and standout more. It won't go away?

Generalized rash: The differential diagnosis of a generalized rash is large. You should schedule an appointment to visit a dermatologist as soon as possible. Certain factors are important such as whether the rash is raised or flat, itchy or not, involving the palms of the hands or the soles of the feet, or not. If the rash started in one location and spread to another, describe it to them, and your history and meds

Dr. Cornelia Franz
1,059 Doctors shared insights

Rash (Definition)

A rash is a change to skin condition which can affect color, appearance, or texture. It may or may not ...Read more