Ocular dermatitis requires first determining the cause, whether it is an allergic disease or a factor of infection. Allergic dermatitis can manifest as swelling of the eyelids with blisters, papules, and eczema-like changes, and the patient may experience itching, with most symptoms being intolerable. Allergic dermatitis is treated with anti-allergy types of eye ointments, such as those containing histamine receptor inhibitors, or hormonal drugs. The latter have more side effects and care should be taken to check the condition of the eye pressure, while they should not be used for too long. In the case of viral infectious dermatitis, the main symptom is pain. Dermatitis caused by herpes zoster invades the trigeminal nerve and causes significant neuropathic pain, followed by blisters and papules on the surface skin, which need to be distinguished from allergic reactions and may also develop into permanent skin scarring. Patients should use antiviral types of medications as early as possible, together with nerve-nourishing drugs, and if the pain is intolerable, pain-relieving drugs can be used appropriately.