The reaction of your skin to your own tears could be due to a condition called "dermatographia" or "skin writing." Dermatographia is a skin condition where the skin becomes hypersensitive and reacts strongly to physical stimuli, such as pressure, scratching, or in your case, tears. This condition is also known as "skin writing" because the skin can develop red, raised, and itchy welts in response to various triggers.
When you cry, your tears may contain substances like histamines, which can trigger an allergic-type reaction in sensitive individuals. The tears might cause the blood vessels in your skin to dilate, leading to red patches and blotches, especially in areas that are more susceptible to sensitivity, such as the face, neck, and forehead.
The red patches and blotches may last for a few days because the skin's reaction to tears can take some time to subside. Additionally, the skin's sensitivity might be prolonged if you continue to experience emotional distress or if there are other environmental factors that exacerbate the condition.
If you're concerned about this skin reaction, it's best to consult a dermatologist. They can assess your specific situation, provide an accurate diagnosis, and recommend appropriate treatment options or lifestyle adjustments to help manage the condition. In the meantime, you can try to reduce skin irritation by using gentle skincare products, avoiding excessive rubbing or scratching, and keeping your skin moisturized.