It is very common for ongoing allergies themselves to cause inflammation and swelling inside your nose. Regarding your medications, Allegra (fexofenadine) helps reduce this swelling and is highly unlikely to cause it. However, certain nasal sprays, especially if used for too long or if they cause local irritation, can sometimes lead to dryness or a rebound swelling effect. Please be reassured that this is a manageable issue. I recommend discussing the specific nasal spray you are using with your doctor to see if adjusting your treatment can help bring you some comfort.

It is generally safe to start swimming, but you need to take extra care of your skin. Sotret (isotretinoin) makes your skin dry, sensitive, and highly prone to sunburn, and pool chlorine can cause further irritation. Allegra (fexofenadine) is perfectly safe to continue. To protect yourself, apply a thick moisturizer before and after swimming, rinse off with clean water immediately after exiting the pool, and use a broad-spectrum, water-resistant sunscreen of SPF 50 or higher if you are swimming outdoors. If your skin rash worsens or becomes highly irritated, take a brief break and consult your doctor.

To manage your allergic runny nose and cough, first identify the trigger via an allergy skin prick test or a specific IgE blood test. For immediate relief, use daily antihistamines and steroid nasal sprays. Prevent recurrences by avoiding common triggers like dust mites, pollen, and pet dander. Wash bedding in hot water and use indoor HEPA air purifiers. For a permanent cure, consult an allergist about allergen immunotherapy (allergy shots or under-the-tongue drops). This treatment gradually trains your immune system to stop reacting to the specific allergen, providing long-term relief.

Red rashes with itching after fever and medicines may be due to a drug reaction or a viral rash. This should not be ignored, as some reactions need prompt medical attention. Avoid taking any new medicines without medical advice. Consult a doctor immediately for proper evaluation and suitable management.

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.

The burning red bumps and itching you describe sound like hives (urticaria). Since they improve with antihistamines, it suggests an allergic-type reaction. Interestingly, certain acid reflux medications, such as proton pump inhibitors (like omeprazole) or H2 blockers (like famotidine), can occasionally trigger delayed drug-induced skin reactions. This explains why the flare-ups happen a few days after taking them. I gently recommend discussing this with your doctor. They can help identify the exact trigger and safely transition you to an alternative reflux management plan.