HealthCareMagic is now Ask A Doctor - 24x7 | https://www.askadoctor24x7.com

Get your health question answered instantly from our pool of 18000+ doctors from over 80 specialties
159 Doctors Online

By proceeding, I accept the Terms and Conditions

Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

HCM Blog Instant Access to Doctors
HCM BlogQuestions Answered
HCM Blog Satisfaction

What Causes Itchy Rash Behind Left Knee And Thigh Despite Taking Benadryl?

I had a partial knee replacement on 3/10. All has been going well, but yesterday I started to develop a rash behind my left knee. The rash resembles heat rash and is very itchy, so I took Benadryl. The rash, however, is spreading up my thigh, onto my belly and buttocks. I do not have any swelling in my throat or tongue. I am unable to reach my doctor. How can I treat this?
Wed, 4 May 2016
Report Abuse
Dentist 's  Response
Hi Dear,

Welcome to HCM.

Understanding your concern. As per your query you have itchy rash behind left knee and thigh despite taking Benadryl which seems to be due to bacterial infection of the skin and soft tissue due to compromised immunity of your body and increased susceptibility of getting infected. If it is not healing with anti histamine then it must be due to infection . I would suggest you to start with oral antibiotic course of Amoxycillin 500 mg in combination with clavulanic acid 125 mg for around 1 week. Apply topical antibacterial ointment neosporin or gentamicin on these rashes twice daily. You should take oral painkiller as well. Visit dermatologist once and get it examined and start treatment after proper prescription.

Hope your concern has been resolved.

Get Well Soon.

Best Wishes,
Dr. Harry Maheshwari
I find this answer helpful

Note: For further follow up on related General & Family Physician Click here.
Disclaimer: These answers are for your information only and not intended to replace your relationship with your treating physician.
This is a short, free answer. For a more detailed, immediate answer, try our premium service [Sample answer]
Share on
 

Related questions you may be interested in


Loading Online Doctors....
What Causes Itchy Rash Behind Left Knee And Thigh Despite Taking Benadryl?

Hi Dear, Welcome to HCM. Understanding your concern. As per your query you have itchy rash behind left knee and thigh despite taking Benadryl which seems to be due to bacterial infection of the skin and soft tissue due to compromised immunity of your body and increased susceptibility of getting infected. If it is not healing with anti histamine then it must be due to infection . I would suggest you to start with oral antibiotic course of Amoxycillin 500 mg in combination with clavulanic acid 125 mg for around 1 week. Apply topical antibacterial ointment neosporin or gentamicin on these rashes twice daily. You should take oral painkiller as well. Visit dermatologist once and get it examined and start treatment after proper prescription. Hope your concern has been resolved. Get Well Soon. Best Wishes, Dr. Harry Maheshwari