What you are experiencing sounds like cold urticaria, which can sometimes be triggered after an allergic reaction like your aspirin event. While there is no instant 'permanent' cure, these hives often resolve on their own over time. Since fexofenadine (Allegra) has not worked, the next best step is seeing an allergist. They can safely adjust your antihistamine dosage or discuss prescription options to block these reactions. In the meantime, try to keep your face warm and protected from cold winds.

Since this has lasted ten days, it could be triggered by a delayed allergic reaction to a new product (like soap or lotion), a viral infection, or even stress. Because antihistamines like fexofenadine aren't helping, it is best to have a doctor or dermatologist examine your skin. They can provide a precise diagnosis and prescribe targeted treatments, like topical creams, to help you find relief quickly.

Please rest assured that taking fexofenadine (Allegra) or cetirizine occasionally, up to three times a month, is very safe and will not harm your liver or affect your hemangioma. A liver hemangioma is a benign blood vessel growth that does not interfere with how your liver processes these allergy medications. Both fexofenadine and cetirizine are processed safely by the body, especially at such infrequent doses. You can continue using them for allergy relief without worrying about liver complications.

Your morning sneezing and blocked nose are classic signs of allergic rhinitis. To help manage this, try avoiding very cold foods, dairy, and alcohol, which can sometimes trigger or worsen nasal congestion. For relief, you can use a daily non-drowsy oral antihistamine like cetirizine or loratadine to reduce sneezing. For the blocked nose, a corticosteroid nasal spray such as fluticasone is highly effective when used regularly. Saline nasal sprays are also a great, safe option to clear your nasal passages. If symptoms persist, please consult a healthcare professional for a personalized evaluation.

Yes, your symptoms strongly suggest an allergic reaction. Since warm saltwater rinses haven't provided enough relief, taking Allegra (fexofenadine) is a very reasonable next step. It is a non-drowsy antihistamine that helps block the histamines triggering your sneezing. Please follow the package instructions, and if your symptoms don't improve or if you develop new symptoms, it would be wise to consult your doctor.

Since it has been 10 days since your symptoms began and they are significantly improving, you can safely end your isolation, provided you have been fever-free for at least 24 hours without using fever-reducing medication. The fexofenadine (Allegra) you took helps with allergy-like symptoms but does not affect this timeline. You have done a great job protecting others by isolating. You can now safely return to your daily activities.