Q. What is the treatment for tinea cruris?

Answered by
Dr. Sandhya Narayanan Kutty
and medically reviewed by iCliniq medical review team.
This is a premium question & answer published on Aug 25, 2022

Hi doctor,

I have itching and rash on the inner part of the body under the thighs. The rash is spreading. I have been facing this for three weeks. I have used Itch guard cream, but no use. Please suggest alternatives medicines.



Welcome to

As per the history and image provided, (attachments removed to protect the patient's identity) the most probable diagnosis is Tinea cruris.

Tinea cruris is a fungal infection caused by contact with an infected individual due to weakened immunity, moisture stagnation, and excessive sweating. They initially appear as a small round lesion and spread slowly within the area to form a more extensive lesion. In addition, they may spread to another part of your body if left untreated; they produce excess itching, especially while sweating.

I would suggest the following medications.

1. Cessation of Itch guard for three days.

2. KOH (potassium hydroxide) skin scraping to rule out the presence of fungal elements. This test is done at a laboratory or by a dermatologist where the skin scalings are rubbed gently and tested under a microscope to check for the presence of fungal elements. The test needs to be done three days after stopping the current medication.

3. Terbinafine cream to be used twice daily in the morning and at night. Apply only on the affected area for eight weeks or till the lesion disappears.

4. Keto soap for bathing. Use the soap daily after gathering in the morning and at night while bathing and leave for three minutes before washing off. Do not use the soap on unaffected areas. Use any regular soap on other parts of your body that are unaffected. Continue for eight weeks

5. Capsule Itraconazole 200 mg once daily to be taken at night after dinner for four weeks.

6. Avoid stagnation of moisture and sweat; use loose clothes and air the affected area well to remove any moisture, especially after a shower. Terbinafine cream mentioned above is to be applied on clean, dry skin following the shower. The lesion would take two to three months to reduce in appearance, as is the case with any Tinea infections; therefore, consistency is vital when considering the usage of medications.

Do not start the above medications without undergoing KOH testing.

Consult a specialist doctor, discuss wih them, and take medicatons with their consent.

Once the reports are received, follow up via the free follow-up session provided after one week to update before starting the above medications.

I hope I can be of help.

Stay happy, healthy, and safe.

Kind regards.

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