Can I Shower with a Plantar Wart?: A Guide to Managing Foot Fungus. Avoiding water or taking precautions can help minimize risk of infection and spreading of plantar warts. Exposing the area to warm water and soap can foster bacterial, fungal, and microorganism growth on the skin. Moderation is key; limit exposure, dry the area thoroughly after bathing or showering, avoid walking barefoot, wear well-fitting socks, and consider using antifungal powder regularly.