Hi i was wondering if you would know if there is a connection between high esr and allergic reactions/ allergic asthma/that has got worst?

A long shot: The ESR / erythrocyte sedimentation rate is of little value in general medicine and doing it in the lab is full of pitfalls. Usually common allergies don't raise it. If you have recent-onset severe asthma and symptoms that seem unrelated, your physician might be alerted by a high sed rate to the rare but serious churg-strauss syndrome -- a long shot, but something to consider.

Yes: The esr, erythrocyte sedimentation rate, is a nonspecific indicator of inflammation. A researcher decades ago ?Dr mason guest i believe, found that red blood cells collected in a tiny capillary tube fell out of suspension faster in patients with inflammation. Rbcs coated with inflammatory factors are heavier and fall faster.It doesn't matter what caused the inflammation.