Hello and thanks for trusting me to help you. I am a board certified consultant with over 30 years of experience.Please provide more information regarding your question so I can help you in detail.
Is it red,raised,itchy and painful rash?
History of unprotected sex?
Dryness and peeling of skin?
Since how long have you been suffering from?
Any other medical history?
Are you taking any medications?
If possible can you please upload picture?
Thanks.Waiting for your response.
Sorry for late reply and inconvenience.
Thanks for all these additional information.I understand your concern.
Well as you describe and your pictures are not suggesting STD.
These can be eczema,irritant dermatitis,staph infection.
You should apply OTC hydrocortisone cream and Bacitracin ointment twice a day.
Also take OTC Motrin and Zyrtec at night.
Also wear loose fitted clothes to prevent friction.
If there is pus discharge from blisters then oral antibiotics are required so see your doctor for a clinical examination for further evaluation and management.
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