Bumps appeared on my arms the vanished and now are

Patient: Bumps appeared on my arms the vanished and now are back. I thought it was dust mites since I’m allergic but I have washed all my bedding and sprayed it with allergy spray and took a shower. They where gone during my shower. Now with all clean bedding I have the red bumps that look like mosquito bites but are not. They were no bugs found in my sheet or on my mattress. It first started on my arms. Now that is back it has gone to my neck,chest and abdomen as well. They don’t really bother me just a little itchy.

Symptoms: Itching and redness

Doctor: