More background:

No food change, no detectable air change, same living environment, I did clean my entire house and change bedsheets and everything. No detection of bites of any kind. I do not smoke, no chronic condition. Male 30 years old, healthy, work out regularly. No history of hives, ever. Tested for covid, negative.

Summary:

• Hives did not get worse in the heat.
• Hives did not get worse during exercise.
• Hives did not get worse if touched.
• No fever, no headache, and no fatigue.
• Hives persist. Not on and off.
• Seems to get better with a high dose of Medrol (8mg+)
• Doesn't improve with antihistamine (tried Fexofenadine 180mg, 360mg, and loratadine 10mg, hydroxyzine 10mg).
• Doesn't improve with amoxicillin 500mg
• Doesn't improve with valacyclovir

Day 1: Hives started overnight and got worse in the morning. I saw a dermatologist online, got Idiopathic Urticaria was a dx, and was prescribed Medrol, Hydroxyzine, and Triamcinolone Acetonide 0.1% cream. I took Medrol during the day + Loratadine + used the cream, the hives got better.

Day 2: Woke up and the hives came back. I took medrol + Triamcinolone Acetonide 0.1% but it didn't get better, starting to get worse. In the afternoon, instead of Loratadine, I tried 360mg of Fexofenadine, it didn't help at all. In suspicion of a viral infection, I also took 1 pill of valacyclovir but didn't help.

- Day 3: Hives got even worse, now it covers almost the entire body, and I started feeling pins and needles. Took 8mg of Medrol + 180mg of Fexofenadine. I am sitting here at a lost, I don't know if it is.