my hives

I went to a resort with a ski resort and a water park during the Chuseok holiday with my family.
I couldn't enjoy it until the end of the holiday and came back home due to an unknown hives on the second day of the holiday.
I came home, went to the hospital, and took medicine, but my hives are still not low
The hospital says it's not food, and I don't know exactly yet, but maybe it's because my immune system is weakened.
The doctor told me to take the medicine stronger and come next week.

I went to a resort with a ski resort and water park during the Chuseok holiday with my fmaily. I couldn't enjoy it until the end of the holiday and had to return home on the second day due to an unknown outbreak of hives. After coming home, I went to the hospital and took some medicines, but my hives still not low. The hospital says  it's not  the food so I don't know exactly yet, but maybe because my immune system is weak. So the doctor advised me to take stronger medicine and come back  next week.