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Doctor insights on: White Itchy Bumps Turn Red And Long

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Itchy bumps for a week now after going biking w/ sunscreen. Seem to be clear/flesh colored until I scratch them and they turn red. Is it heat rash?

Itchy bumps for a week now after going biking w/ sunscreen. Seem to be clear/flesh colored until I scratch them and they turn red. Is it heat rash?

Allergy vs drug RN: This could be due to any number of things including heat rash. I would also be concerned about a possible allergy or sensitivity to one of the ingredients in the sunblock. ...Read more

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Dr. Doanh Nguyen
632 doctors shared insights

Itchy Rash (Definition)

Most itchy rashes are called eczema or dermatitis. Both are due to ...Read more


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Itchy bumps for a week now after going biking w/ sunscreen. Seem to be clear/flesh colored until I scratch them and they turn red. Is it heat rash?

Itchy bumps for a week now after going biking w/ sunscreen. Seem to be clear/flesh colored until I scratch them and they turn red. Is it heat rash?

Dermatitis: Sounds like some sort of contact dermatitis or heat given the timing of the symptoms and the event. If it doesn't get better with conservative mgmt over the next few days you should consult with a dermatologist. ...Read more

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Itchy bumps for a week now after going biking w/ sunscreen. Seem to be clear/flesh colored until I scratch them and they turn red. Is it heat rash?

Itchy bumps for a week now after going biking w/ sunscreen. Seem to be clear/flesh colored until I scratch them and they turn red. Is it heat rash?

Could be: Is very difficult for us to make a diagnosis without seeing the lesion and having more information. If you want to have an accurate diagnosis, you should contact your primary care physician. ...Read more

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Had itchy bumps for a week now after going biking w/ sunscreen. Seem to be clear/flesh colored until I scratch them and they turn red. Is it heat rash?

Had itchy bumps for a week now after going biking w/ sunscreen. Seem to be clear/flesh colored until I scratch them and they turn red. Is it heat rash?

Need personal exam!: Even though you have provided a description, actual examination of your rash is needed to provide a meaningful diagnosis. See a dermatologist if this persists or worsens. ...Read more

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Had itchy bumps for a week now after going biking w/ sunscreen. Seem to be clear/flesh colored until I scratch them and they turn red. Is it heat rash?

Had itchy bumps for a week now after going biking w/ sunscreen. Seem to be clear/flesh colored until I scratch them and they turn red. Is it heat rash?

Maybe: It is possible, depending on location of the bumps/rash. Areas under clothing or heavy perspiration are potential sites for such rashes. If on outside skin areas where sunscreen was applied, may be assoicated with contact allergy to the sun lotion or its preservatives contained. Do not scratch them. You may try use of 1% hydrocortizone cream (cortaid) applied 2-3 times a day... No scratching. ...Read more

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Had itchy bumps for a week now after going biking w/ sunscreen. Seem to be clear/flesh colored until I scratch them and they turn red. Is it heat rash?

Had itchy bumps for a week now after going biking w/ sunscreen. Seem to be clear/flesh colored until I scratch them and they turn red. Is it heat rash?

Maybe: It is possible, depending on location of the bumps/rash. Areas under clothing or heavy perspiration are potential sites for such rashes. If on outside skin areas where sunscreen was applied, may be assoicated with contact allergy to the sun lotion or its preservatives contained. Do not scratch them. You may try use of 1% hydrocortizone cream (cortaid) applied 2-3 times a day... No scratching. ...Read more

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Had itchy bumps for a week now after going biking w/ sunscreen. Seem to be clear/flesh colored until I scratch them and they turn red. Is it heat rash?

More info needed: Where are these bumps? Are they where you applied sunscreen? Or under your clothing? Does anything make them better? Anything make them worse? ...Read more

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Had itchy bumps for a week now after going biking w/ sunscreen. Seem to be clear/flesh colored until I scratch them and they turn red. Is it heat rash?

Had itchy bumps for a week now after going biking w/ sunscreen. Seem to be clear/flesh colored until I scratch them and they turn red. Is it heat rash?

Rash or drug rxn?: There are a variety of possible causes for this including photosensitivity induced by systemic drugs such as bactria, contact dermatitis due to a reaction to the sunscreen or, yes, heat rash. In the latter case it will likely be limited and short lived. In the former, you should determine the cause. In the meantime consider topical Benadryl (diphenhydramine) and Hydrocortisone for short term relief. ...Read more

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Had itchy bumps for a week now after going biking w/ sunscreen. Seem to be clear/flesh colored until I scratch them and they turn red. Is it heat rash?

Had itchy bumps for a week now after going biking w/ sunscreen. Seem to be clear/flesh colored until I scratch them and they turn red. Is it heat rash?

Heat, drugs, etc: There are a variety of possible causes for this including photosensitivity induced by systemic drugs such as bactria, contact dermatitis due to a reaction to the sunscreen or, yes, heat rash. In the latter case it will likely be limited and short lived. In the former, you should determine the cause. In the meantime consider topical Benadryl (diphenhydramine) and Hydrocortisone for short term relief. ...Read more

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Had itchy bumps for a week now after going biking w/ sunscreen. Seem to be clear/flesh colored until I scratch them and they turn red. Is it heat rash?

Had itchy bumps for a week now after going biking w/ sunscreen. Seem to be clear/flesh colored until I scratch them and they turn red. Is it heat rash?

Allergy vs rash: This could be contact dermatitis to one of the ingredients in the sunscreen as well. Topical Benadryl (diphenhydramine) and 1% Hydrocortisone screen may also be beneficial to alleviate symptoms. Heat rash is also a possibility and will likely be short lived and limited to the sunexposed areas only. ...Read more

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Had itchy bumps for a week now after going biking w/ sunscreen. Seem to be clear/flesh colored until I scratch them and they turn red. Is it heat rash?

Maybe: It is possible, depending on location of the bumps/rash. Areas under clothing or heavy perspiration are potential sites for such rashes. If on outside skin areas where sunscreen was applied, may be assoicated with contact allergy to the sun lotion or its preservatives contained. Do not scratch them. You may try use of 1% hydrocortizone cream (cortaid) applied 2-3 times a day... No scratching. ...Read more

See 1 more doctor answer
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Had itchy bumps for a week now after going biking w/ sunscreen. Seem to be clear/flesh colored until I scratch them and they turn red. Is it heat rash?

Had itchy bumps for a week now after going biking w/ sunscreen. Seem to be clear/flesh colored until I scratch them and they turn red. Is it heat rash?

Maybe: It is possible, depending on location of the bumps/rash. Areas under clothing or heavy perspiration are potential sites for such rashes. If on outside skin areas where sunscreen was applied, may be assoicated with contact allergy to the sun lotion or its preservatives contained. Do not scratch them. You may try use of 1% hydrocortizone cream (cortaid) applied 2-3 times a day... No scratching. ...Read more

See 1 more doctor answer
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Had itchy bumps for a week now after going biking w/ sunscreen. Seem to be clear/flesh colored until I scratch them and they turn red. Is it heat rash?

Maybe: It is possible, depending on location of the bumps/rash. Areas under clothing or heavy perspiration are potential sites for such rashes. If on outside skin areas where sunscreen was applied, may be assoicated with contact allergy to the sun lotion or its preservatives contained. Do not scratch them. You may try use of 1% hydrocortizone cream (cortaid) applied 2-3 times a day... No scratching. ...Read more

See 1 more doctor answer
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Had itchy bumps for a week now after going biking w/ sunscreen. Seem to be clear/flesh colored until I scratch them and they turn red. Is it heat rash?

Had itchy bumps for a week now after going biking w/ sunscreen. Seem to be clear/flesh colored until I scratch them and they turn red. Is it heat rash?

Maybe: It is possible, depending on location of the bumps/rash. Areas under clothing or heavy perspiration are potential sites for such rashes. If on outside skin areas where sunscreen was applied, may be assoicated with contact allergy to the sun lotion or its preservatives contained. Do not scratch them. You may try use of 1% hydrocortizone cream (cortaid) applied 2-3 times a day... No scratching. ...Read more

See 1 more doctor answer
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Had itchy bumps for a week now after going biking w/ sunscreen. Seem to be clear/flesh colored until I scratch them and they turn red. Is it heat rash?

Had itchy bumps for a week now after going biking w/ sunscreen. Seem to be clear/flesh colored until I scratch them and they turn red. Is it heat rash?

Maybe: It is possible, depending on location of the bumps/rash. Areas under clothing or heavy perspiration are potential sites for such rashes. If on outside skin areas where sunscreen was applied, may be assoicated with contact allergy to the sun lotion or its preservatives contained. Do not scratch them. You may try use of 1% hydrocortizone cream (cortaid) applied 2-3 times a day... No scratching. ...Read more

See 1 more doctor answer
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Had itchy bumps for a week now after going biking w/ sunscreen. Seem to be clear/flesh colored until I scratch them and they turn red. Is it heat rash?

Maybe: It is possible, depending on location of the bumps/rash. Areas under clothing or heavy perspiration are potential sites for such rashes. If on outside skin areas where sunscreen was applied, may be assoicated with contact allergy to the sun lotion or its preservatives contained. Do not scratch them. You may try use of 1% hydrocortizone cream (cortaid) applied 2-3 times a day... No scratching. ...Read more

See 1 more doctor answer
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Had itchy bumps for a week now after going biking w/ sunscreen. Seem to be clear/flesh colored until I scratch them and they turn red. Is it heat rash?

Had itchy bumps for a week now after going biking w/ sunscreen. Seem to be clear/flesh colored until I scratch them and they turn red. Is it heat rash?

Maybe: It is possible, depending on location of the bumps/rash. Areas under clothing or heavy perspiration are potential sites for such rashes. If on outside skin areas where sunscreen was applied, may be assoicated with contact allergy to the sun lotion or its preservatives contained. Do not scratch them. You may try use of 1% hydrocortizone cream (cortaid) applied 2-3 times a day... No scratching. ...Read more

See 1 more doctor answer