Wake up daily with new bites, in lines or clusters. checked for bedbugs thoroughly but found no traces (no shells, no blood stains, nothing in bed crevices or frame). could it be hives or another allergic reaction? i don't think it's fleas because my husb

Scabies: Insect bits that are in a linear pattern can be scabies. These are microscopic mites that burrow under the skin and cause intense itching, sometimes all over the body. It is acquired from either another person or infested sand/soil. You need to see a doctor for the proper treatment, permethrin cream, and to wash all fomites in hot water or dry in a hot drier to kill the mites.