Tears can burn your cheeks primarily because their pH level is different from that of your skin.
Here's a breakdown:
-
Tear Composition: Tears are isotonic, meaning their salt concentration is similar to normal saline solutions used in IV fluids. However, their pH is slightly more alkaline (higher) than the skin's natural pH.
-
pH Imbalance: This difference in pH can cause a mild irritation or burning sensation when tears come into contact with your skin, especially if you're crying a lot and the skin is repeatedly exposed to the alkaline tears.
-
Individual Sensitivity: Some people have more sensitive skin than others. If your skin is naturally more acidic or easily irritated, you might experience a greater burning sensation from tears.
-
Additional Irritants: Other factors can contribute to the burning sensation. If you've been touching your face with dirty hands, or if you're using harsh facial products, these irritants can mix with your tears and exacerbate the burning feeling.
In short, the slight difference in pH between your tears and your skin is the main culprit behind the burning sensation you might experience when crying.
