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.

Since your widespread symptoms haven't improved after two weeks of topical cortisone and antihistamines, a systemic corticosteroid?such as a cortisone injection or a short course of oral steroid tablets?is indeed a very reasonable and common next step. This helps treat the inflammation from the inside out. I highly recommend scheduling a visit with your doctor or a dermatologist. They can safely evaluate your skin, confirm the diagnosis, and prescribe the most appropriate treatment to finally bring you some well-deserved relief.

Your symptoms strongly suggest cholinergic urticaria, a type of hives triggered by a rise in body temperature. Since standard antihistamines like loratadine (Alaspan) and dexchlorpheniramine (Polaramine) aren't working, your doctor may consider prescribing a higher dose of non-sedating antihistamines, adding a medication like montelukast, or discussing advanced therapies like omalizumab. Please consult an allergist or dermatologist to safely explore these targeted treatment options.

Nose and eye irritation from allergies can be eased by avoiding triggers, using saline nasal rinses, and keeping your environment clean. You should consult a doctor, who may recommend allergy medicines or eye drops for relief.

Since your symptoms return quickly after stopping deflazacort and fexofenadine, it is important to find a safer, long-term solution. Prolonged steroid use can have side effects. Under a specialist's guidance, next steps often involve increasing your daily non-drowsy antihistamine (like fexofenadine) up to four times the standard dose. If this is still ineffective, advanced therapies such as a targeted biologic injection (omalizumab) or other immunomodulating medications can be highly effective. Please consult an allergist or dermatologist to safely transition off the steroid and find a personalized treatment plan.

Please consult your doctor immediately to see if you should continue Taxim, Zinetac, Allegra, and Budecort. To manage your dengue, focus on getting plenty of rest and staying highly hydrated with water, ORS, or coconut water. For your fever and body aches, use only paracetamol. Absolutely avoid pain relievers like ibuprofen or aspirin, as they can dangerously increase bleeding risks and impact your platelets. Keep monitoring your platelet count closely.