It sounds frustrating to have persistent itching with darkened, rough skin on your shins that hasn't improved with antifungal creams. This pattern suggests the possibility of a chronic skin condition such as eczema, lichenification from repeated scratching, or post-inflammatory hyperpigmentation rather than a fungal infection.

• Since antifungal treatment hasn't helped, it’s important to see a dermatologist for a thorough evaluation and possibly a skin biopsy or patch testing to identify the exact cause.
• They may recommend treatments like topical corticosteroids or moisturizers to reduce inflammation and improve skin texture.
• Avoid scratching and keep the skin moisturized to prevent further irritation and darkening.

If you notice worsening symptoms, spreading rash, pain, or signs of infection (like pus or fever), seek medical attention promptly. Consulting a dermatologist will provide the best guidance tailored to your condition.To narrow down potential causes, we will need some more information.Please tell me your age and gender.