Topical creams are generally ineffective for treating fungal nail infections. This is because nail infections involve the nail plate and nail bed, and most topical preparations cannot penetrate deeply enough to reach the fungus. For proper management, systemic treatment or specialised nail formulations are usually required. Ongoing follow‑up with a dermatologist is essential to ensure safe and effective care.

No, Terbina Force Cream does not help to treat psoriasis. It is an antifungal cream used to treat fungal infections like ringworm and athlete’s foot, not psoriasis, which is an inflammatory skin disease. In some people, terbinafine may even worsen psoriasis or trigger flare-ups, so it is best to use only psoriasis-specific medicines such as steroid or vitamin D creams as advised by a doctor.

Itching on the hand that starts as a small blister, forms ring-like patches, and spreads is most suggestive of a fungal infection (ringworm), especially since it improves temporarily with Betnovate-C (which contains a steroid) and then returns after stopping it. Steroid creams can reduce redness and itching for a short time, but often worsen fungal infections and cause them to spread or recur. The best approach is to stop using steroid-containing creams and start a proper antifungal cream such as clotrimazole, terbinafine, or luliconazole, applied regularly for a few weeks and continued even after the rash clears. Keep the area clean and dry, avoid scratching, and do not share towels or personal items. If the infection is spreading, recurring, or not improving, consult a doctor who may confirm the diagnosis and prescribe oral antifungal medicines if needed.