His severe leg itching could be caused by dry skin (xerosis), which is common in diabetes and can be worsened by infrequent bathing. Since Allegra is not providing relief, the itching may also stem from diabetic neuropathy (nerve irritation) or poor circulation in his lower legs. I gently recommend keeping his legs clean and applying a thick, fragrance-free moisturizing cream daily. Please consult his doctor to examine his legs and check his blood sugar levels to rule out any underlying infections or nerve issues, ensuring he stays comfortable.

While fexofenadine (Allegra) is usually non-drowsy, it can occasionally cause insomnia in some people. It is generally safe to switch to cetirizine or diphenhydramine while using oral terbinafine and topical ketoconazole, as there are no major interactions. Diphenhydramine is more sedating and might help you sleep while easing the itch, while cetirizine is a good once-daily option that is mildly sedating. Please check with your doctor or pharmacist to ensure these options are right for you.

A severely swollen bee sting on the elbow may indicate an allergic reaction or infection. You should clean the area, apply a cold compress, and consult a doctor immediately. If you experience difficulty breathing, dizziness, or widespread swelling, seek emergency medical care immediately.

Since fexofenadine (Allegra) is no longer helping, you might try cetirizine or loratadine, which are effective, daily non-drowsy antihistamines. The skin darkening you are experiencing is likely post-inflammatory hyperpigmentation, a common and temporary response to skin inflammation and scratching that typically fades once the itching stops. To soothe your skin, cool compresses or a mild hydrocortisone cream can help. Consult a healthcare provider to safely adjust your treatment and ensure you find lasting relief.

A cold lasting more than a week, with fever and headache, may suggest a persistent viral infection or a sinus-related problem. Rest, warm fluids, and steam inhalation may help relieve congestion and discomfort. Since your symptoms are worsening, the test results may need medical review. Consult a doctor with your CBC report for proper evaluation and suitable treatment.

Red rashes and itching that appear after a fever and body pain may indicate an infection, an allergic reaction, or a viral illness. You should consult a doctor immediately for proper evaluation and treatment to prevent complications.