Treating Tinea Corporis (Ringworm) in Older Adults | Village Dermatology Katy & Houston, TX
By: Dr. Ashley Baldree
Introduction
At Village Dermatology, we see patients across all age groups with chronic, undiagnosed rashes. In this case, a 65-year-old man presented with a 6-month history of a red, persistent rash on his upper thigh and leg. The lesion was ultimately diagnosed as Tinea Corporis, a common fungal infection of the body, also known as "ringworm."
Patient Presentation
Patient: 65-year-old male
Primary Complaint: Rash on the left proximal thigh and leg
Symptoms: Red, persistent, non-healing rash
Duration: 6 months
Previous Treatment: None
Clinical Examination & Diagnostic Approach
A full skin exam was performed, with close evaluation of the left anterior lateral thigh and leg. Though the KOH prep (a diagnostic test for fungal infection) was equivocal, the clinical presentation—scaly red patches in a ring-like configuration—strongly suggested Tinea Corporis.
Diagnosis: Tinea Corporis (Ringworm)
Tinea Corporis is a fungal skin infection caused by dermatophytes. Despite its name, it is not a worm but a superficial fungal infection often transmitted from pets, communal showers, or contaminated clothing. It is common in warm, humid climates like Houston and Katy, Texas.
Treatment Plan
We initiated empiric antifungal treatment with:
Topical Ketoconazole 2% Cream
Instructions: Apply to the affected area twice daily
Duration: Continue for 1 week beyond resolution of symptoms
Counseling: Explained potential for irritation; use less frequently if needed
Patient Education & Lifestyle Counseling
We also educated the patient on:
Avoiding moisture buildup (tight clothing, excessive sweating)
Using breathable fabrics to prevent recurrence
Washing towels and bedding frequently
Avoiding skin-to-skin contact or shared clothing during treatment
Despite excellent cure rates, recurrence is common, especially in older patients with thinner skin or immune system challenges.
Why It Matters in Katy & Houston
The warm, humid Gulf Coast climate creates a perfect breeding ground for fungal infections. Delayed or incorrect diagnoses can allow fungal rashes to persist for months. At Village Dermatology, we use a combination of clinical expertise, diagnostic testing, and patient education to treat conditions like Tinea Corporis quickly and effectively.
Follow-Up Plan
The patient is scheduled to return in 4 weeks for reevaluation. If the rash persists, oral antifungal therapy (e.g., terbinafine or griseofulvin) may be considered.
