Hydrocortisone is not FDA-approved for use in pets, but under a veterinarian's care, the drug may be used to relieve skin problems in dogs. The medicine can be given orally or topically to relieve itchy skin.
Kitten Eyes Completely Open after the First Couple Weeks. The kittens' eyes will gradually become wider after the first week or so of her life. They will continue to open further until somewhere between two and three weeks of age, at which point they will be open completely. A kitten's ears will also open about this time, but her eyes do open first, meaning that she will begin to develop first her sense of sight during these first few weeks of life.
Another article that might be helpful is Care of the Orphaned Kitten. A newborn kitten is born blind. Its eyes normally do not open until it is 10 to 12 days old. Kittens' ear canals, also, are not patent for a few days after birth, though these neonates still do have some ability to appreciate sounds.