Do allergies make our immune system better?

Question

Dear experts,

I've read articles & researches that allergies prevent infections (even more the ASTHMA).

How is that possible? Is it because they keep the Immune system active?

If im right, mast cells and baseophils secrete Histamine (The cause of itchiness), is it cause of it?

(Im talking about food allergies MAINLY)

Any clarification would be appreciated!

Answer 1

Hello! You are correct that with either seasonal or food allergies our immune system ramps up. The increased production of Histamine does play a role. With the increase inflammation which pertains to liquid and movement of immune cells throughout the body, this helps in boosting immunity.

Now I would not say allergies "prevent" infections as we need to not forget the role of antigen+antibodies. If the immune cell, even if upregulated, does not have the matching antibody, we still may be prone to specific infections.

Hope this helps! Message me if you have any questions!

Kind regards,

Jonathan