I'm sorry to hear about the itching and rashes you're experiencing. These symptoms can indeed be caused by a fungal infection, especially when they appear on areas like the back, thighs, and buttocks. Fungal infections such as tinea corporis or candidiasis often cause itchy, red, scaly rashes in these regions.

A commonly used treatment for fungal skin infections is a topical antifungal cream containing terbinafine hydrochloride, which works by killing the fungi causing the infection. One such medication is Terbicip Cream, which is effective against various fungal infections including ringworm, jock itch, and yeast infections on the skin.

Important points to consider:

• Use antifungal creams exactly as prescribed by a doctor.
• Avoid applying the cream near the eyes, nose, or mouth.
• If you notice worsening symptoms, irritation, or no improvement after a couple of weeks, seek medical advice.
• If you have any allergies, are pregnant, or breastfeeding, consult a doctor before using antifungal treatments.

Since rashes and itching can have multiple causes, including allergic reactions or other skin conditions, it is best to have a dermatologist (skin specialist) evaluate your symptoms for an accurate diagnosis and appropriate treatment.

If symptoms worsen or you experience severe discomfort, please seek prompt medical attention.To narrow down potential causes, we will need some more information.I understand you're dealing with rashes and itching. To help me understand better, could you please share your age and gender?