So my son (17 months old) has had a runny nose/been congested for 6 straight months. Doctors don't know what's wrong, they have told me it could be acid reflux, asthma, cow milk allergy, but no real cure yet.

My mom told me I should get a chihuahua and that the chihuahua would absorb the sickness and cure my son lol.

Has anyone had any experiences like this with chihuahuas? I found some information on google but idk if it's a Mexican thing or if it really works. Doing my research before l go buy one lol.