Fexofenadine (Allegra) actually does come in a 60 mg tablet, as well as a liquid suspension, which is often much easier and safer for a three-year-old to take. Please do not attempt to cut the larger 120 mg or 180 mg adult tablets, as this can easily lead to an incorrect and unsafe dose for your child. I gently encourage you to call your pediatrician's office to clarify the prescription, or check with another pharmacy to see if they have the 60 mg strength or liquid formulation in stock.

Since you have tried multiple strong antibiotics like Azithral, Cepodem, and L Cin, alongside allergy treatments like Montair LC, Allegra, Lupituss, and Benadryl without relief, your cough is likely not bacterial. Continuing these medications without a clear diagnosis may cause unnecessary side effects. This dry cough and itchy throat could be due to acid reflux, cough-variant asthma, or post-nasal drip. I strongly recommend consulting a pulmonologist or ENT specialist for a proper evaluation. For now, please stop these self-medications, stay well-hydrated with warm fluids, and try steam inhalation to soothe your throat.

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.

Since fexofenadine (Allegra), hydroxyzine (Atarax), and now ebastine (Ebast) haven't provided lasting relief, it is highly recommended to consult a dermatologist or an allergist. Chronic skin conditions often require specialized allergy testing, like patch tests, to identify specific triggers. Your specialist may consider adjusting your current ebastine dose or exploring advanced, targeted therapies to finally bring you comfort.

Since fexofenadine (Allegra) only provides temporary daily relief, we should focus on restoring your skin's natural moisture barrier. As we age, our skin naturally becomes drier and more sensitive. I recommend taking short, lukewarm showers instead of hot baths, and using a mild, soap-free cleanser. Immediately after gently patting dry, apply a generous amount of a thick, fragrance-free moisturizing cream to lock in hydration. If the itching persists despite these daily moisturizing steps, please consult your healthcare provider or a dermatologist to explore other potential causes and stronger, targeted treatments.

Since your symptoms resolve with fasting but return when you stop antihistamines like hydroxyzine, levocetirizine, or fexofenadine, we should consider conditions like chronic spontaneous urticaria, a specific food allergy, or histamine intolerance. I reassure you that we can manage this. I highly recommend keeping a detailed food and symptom diary and consulting an allergist or immunologist. They can safely guide you through a supervised elimination diet and help you find a long-term management plan so you don't have to rely solely on daily antihistamines.