Can you mix antifungal and steroid cream?

In an ideal scenario, mixing the two wouldn't hurt. The antifungal cream would clear up the infection while the steroid cream dealt with the inflammation. However, in some cases, steroid creams can worsen fungal infections. Mixing the two is only recommended when you know what kind of nail fungus you're dealing with. Since your infection is worsening, it's recommended that you consult a doctor to get treatment that will clear up the infection once and for all.

It may be tempting to mix an antifungal cream like clotrimazole with an anti-inflammatory steroid like hydrocortisone to clear up a fungal infection. This is, however, not recommended as the steroid may worsen the infection by causing inflammatory side effects and it may also delay the regeneration of healthy cells in the affected area. There are effective fungal treatments available that can help to quickly and safely clear fungal infections.