Post-COVID-19 inflammatory responses can sometimes affect both the skin and blood counts. Since the Allegra is not providing relief, and his blood tests show low white blood cells, low platelets, and high inflammation, it is very important that he is evaluated by his doctor or a specialist, such as a hematologist, as soon as possible. They can safely investigate these findings and suggest targeted treatments, such as prescription topical creams or specific anti-inflammatory therapies, to help him heal. Please keep his medical team closely updated on his symptoms.

Please continue giving him the Allegra (fexofenadine) and Montair LC (montelukast and levocetirizine) as prescribed for now. Stopping them abruptly might cause the symptoms to worsen. These medications are used to manage allergic reactions like hives, but the exact duration of treatment depends on the underlying cause. Since the spots are returning, it is very important to consult his pediatrician. They can properly evaluate his progress, identify any allergy triggers, and safely adjust his treatment plan.

While Allegra (fexofenadine) is generally safe, it is unlikely to have caused her to pass out on its own. However, fexofenadine is an antihistamine for allergies and will not effectively treat her cold, stuffy nose, or headache. Because of her complex health history, weak immune system, and the fainting episode, please have her evaluated by a doctor right away before giving her any new medications.

It is very common to feel some returning itchiness after finishing an antihistamine like Allegra, as it was helping to suppress that symptom. Continuing your ketoconazole cream is a key step to fully clear the underlying fungal infection. To support your healing, keep the groin area clean and completely dry, and wear loose, breathable cotton clothing. If the itching remains highly uncomfortable or does not improve with the cream, please reach out to your doctor. They can check if you need a temporary treatment to calm the inflammation.

Based on your description, this could be a common condition called dyshidrotic eczema, which causes tiny, intensely itchy blisters on the hands. Since oral fexofenadine (Allegra) and calamine lotion haven't provided relief, it is best to consult a healthcare professional. They can confirm the diagnosis and may prescribe a targeted treatment, such as a topical corticosteroid cream, which is often much more effective for this condition. In the meantime, try to use gentle, fragrance-free cleansers, keep your hands moisturized, and avoid scratching.

If you have had a cold for a year, you can try medicines like cetirizine, loratadine, or a nasal spray instead of Allegra M or Alerfix. Saline water rinsing also helps. But you should consult your doctor to find the exact cause and proper treatment.