It is possible that the severe fungal infection on your scrotum and the rashes or itching on other parts of your body are connected, as fungal infections can sometimes spread or cause allergic skin reactions. Using a combination cream like Betnovate-GM, which contains an antifungal, antibiotic, and corticosteroid, may help treat the fungal infection and reduce inflammation and itching.

• Avoid applying the cream to unaffected areas unless directed by a doctor.
• Keep the affected areas clean and dry to prevent worsening.
• Watch for any worsening symptoms or new rashes, which may require medical reassessment.

Please consult a dermatologist for a thorough evaluation and personalized treatment plan to ensure proper management and to rule out other causes of your symptoms.To narrow down potential causes, we will need some more information.I understand you're dealing with a fungal infection on your scrotum and rashes/itching elsewhere. To help me understand better, could you please tell me your age and gender?