If they were bedbug bites, they'd certainly itch or hurt or both. They probably aren't. For the time being, rather than throw out our mattress, use a hot iron over its entire surface, paying especial attention to the seams.
When the anesthetic wears off, a bite may begin to itch as the body reacts to the saliva left behind. Scratching a bed bug bite can cause a secondary skin infection and should be avoided if possible. TREATING BED BUG BITES. The American Academy of Dermatology (AAD) recommends a simple treatment plan for most bed bug bites: ‟Wash the bites with soap and water.
In my case, bites never itched, but I would get a histamine reaction -- just a swelling at the bite site that would disappear within the hour. It has been this way for 15 years. If you look at pictures of reactions to bed bug bites, you will see many variations on the appearance.
One to three days after getting bit, the skin around the bite may become itchy or you may notice a burning sensation. However, most people do not experience any additional symptoms, unless they are allergic to the bed bug bites. Those with a bed bug bite allergy are more likely to experience a few extra symptoms besides the itchiness.
Usually the fleas bite randomly on the body. The bed bugs tend to bite more strategically in linear rows. Where bed bug bites can be found anywhere on the body, flea bites are often located on the legs and ankles because these areas are easier to get to. The itching and scratching factor on flea bites vs bed bug bites is about the same.
Bed bug bites usually cause itchy welts. These welts usually appear in a zigzag pattern as show in the photo above. You'll seldom see bed bugs, so many people mistakenly believe that mosquitos, fleas, or spiders bit them.