Tinea corporis refers to superficial fungal infections occurring on smooth skin, while tinea cruris is a type of tinea corporis that specifically affects the groin, perineum, and perianal areas. The primary causative pathogens include Microsporum and Trichophyton, with Epidermophyton also being involved.

bubble_chart Clinical Manifestations

1. is more common in young adults and is frequently seen in summer;
2. tends to occur in areas with profuse sweating and high humidity, and tinea cruris often has a tendency to recur;
3. the basic lesion is an annular or polycyclic ring composed of papules or vesicular papules, with a clear, raised border, central clearing, and peripheral expansion;
4. cutaneous pruritus is obvious.

bubble_chart Diagnosis

1. Commonly occurs in young adults and during summer;
2. frequently affects moist areas;
3. typical skin lesion manifestations;
4. hyphae visible under direct microscopy of scales, with positive fungal culture.

bubble_chart Treatment Measures

Treatment Principles

1. Maintain cleanliness and hygiene;
2. Primarily use topical antifungal agents;
3. If necessary, take systemic antifungal medications.

1. For localized skin lesions, topical therapy is the main approach. Commonly used antifungal agents include imidazole creams or ointments, which can also be combined with other antifungal agents for alternating use;
2. For widespread and stubborn rashes, systemic antifungal drugs such as Sporanox or Lamisil may be considered;
3. For patients with concurrent systemic conditions like diabetes or immunodeficiency disorders, these should be treated simultaneously.

bubble_chart Cure Criteria

1. Cure: Skin lesions subside, symptoms disappear, fungal direct microscopy and culture are negative once a week for two consecutive times;
2. Improvement: Skin lesions partially subside, symptoms alleviate, fungal examination is negative or positive;
3. No cure: No improvement in skin lesions or symptoms, fungal examination is positive.