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Dr. Andrew Rynne
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Dr. Andrew Rynne

Family Physician

Exp 50 years

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What Causes Red Itching Bites Like On Foot And Knee?

I have three linear red (now crusted) bites on the top of my foot. I was at a cemetary Saturday and sat down for a bit....when I got up my foot had these three red marks and I itched it so much that day they opened up and bled. My foot has been mildly swollen on top since. I have treated with bacitracin and Benadryl cream but still very itchy. Now today I have three more linear bites further up going behind knee. I cleaned the rash sites tonight with alcohol which felt good even though it burned some. Am I dealing with scabies, chiggers, etc? Do I need to see a doctor?
posted on Sat, 12 Jul 2014
Twitter Tue, 5 Sep 2017 Answered on
Twitter Tue, 5 Sep 2017 Last reviewed on
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Dermatologist,  's  Response
Hi.
As per your case history you are having insect bite dermatitis.
My treatment advice is -
1. Don't squeeze the lesions as it may worsen the condition.
2. Apply a mild antibiotic cream like fusiderm cream twice daily on it.
3. Take a NSAID like ibuprofen for pain and levocetrizine for itching.
4. Other treatment options are oral antibiotics, oral steroid taken only after consulting a dermatologist.

Thanks.
Dr. Harshit bhachech.
MBBS, DDVL.
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What Causes Red Itching Bites Like On Foot And Knee?

Hi. As per your case history you are having insect bite dermatitis. My treatment advice is - 1. Don t squeeze the lesions as it may worsen the condition. 2. Apply a mild antibiotic cream like fusiderm cream twice daily on it. 3. Take a NSAID like ibuprofen for pain and levocetrizine for itching. 4. Other treatment options are oral antibiotics, oral steroid taken only after consulting a dermatologist. Thanks. Dr. Harshit bhachech. MBBS, DDVL.