(Concern) I have a rash that appears without any known reason.

Lately, I keep getting hives and rashes on my body.

It's coming up.

Is this only appearing on one side of the body, is it shingles?

I also wanted to, but a blister didn't form.

It is red and swollen, itchy, and feels like a mosquito bite.

When I applied the ointment, it subsided by the next day.

It seems to be an allergy based on that.

 

 

Allergies are an overreaction of the immune system to external substances.

This is a visible phenomenon. The immune system reacts to such substances.

Antibodies to recognize threats and counter them

They say they will create it. The excessive reactions that occur during this process

Itchy skin rashes such as hives or allergic dermatitis.

Causing redness and medically referred to as contact dermatitis

It's called proctitis.

 

It seems I didn't have contact dermatitis originally, maybe about a year ago.

It has been around since then.

It was a Masojae clothing, but I found out because a rash appeared on the waist band.

I'm not sure what caused this time.

 

I'm curious if this could suddenly happen.

It comes up and then disappears, but I don't know when it will come up again.

Should I keep worrying about it... Should I go to the hospital?

I want to.

Is it because my immune system is weakened?

Skin rash caused by reasons other than hives

I'm also curious if it can come up.