[Concern] Is it okay to continue taking antihistamines?

Since May 16th of this year, I suddenly developed skin rashes and hives on my lower body.

For the first three weeks or so, I didn't go to the hospital and just endured...

I thought that eating selectively would improve my condition, but skin rashes and hives continued to occur.

I have a hard time every night, so I received treatment at the dermatology clinic in front of my house.

Started taking antihistamines twice a day, in the morning and evening.

Taking two antihistamines and one antispasmodic tablet, the hives disappeared as if by magic.

I've been taking it for about six months so far...

Sometimes, when I forget to take my medication or on very tired days, a very mild rash appears...

While continuously taking antihistamines for more than six months

Will taking antihistamines for a long time lead to tolerance?

I'm feeling 고민 and 걱정...

Is it okay to continue taking antihistamines?