Why do I get dark circles under my eyes when I rub my eyes frequently? What are some ways to treat them?

Rubbing your eyes VS. Allergies: Which culprit damages the area under your eyes?

That's a good question and very common in the clinic. Actually, the belief that "rubbing your eyes causes dark circles" is... That's true, but it's not the only reason. Because this is closely related to "allergies," like a vicious cycle that affects each other. I will explain the mechanism clearly so you can understand how it happens.

1. Allergies are the root cause of inner dullness.

The patient is partly correct in understanding that allergies are the primary cause. In medical terms, we call... "Allergic Shiners" Okay, the mechanism is...

• When we have allergies (especially allergic rhinitis), the nasal lining swells, causing... Blood circulation is poor and congestion occurs. The veins around the eyes and nose.
• The skin under our eyes The thinnest part of the body. (Only about 0.5 mm thick) When venous blood pools underneath, it becomes visible. Dark purple or grayish It's clearer than other areas.

2. Rubbing your eyes is a "factor" that accelerates and permanently damages your eyes.

Although allergies are the cause of itching, the fact that the patient... Rub your eyes hard and frequently. This is the main reason why it's difficult to treat, because:

• Inflammation and pigmentation (PIH): The friction from rubbing your eyes stimulates melanocytes to produce more melanin to protect the skin from damage. The result is that the skin... It becomes darker and thicker. (Lichenification) It's similar to how the skin in that area becomes rough and dark when you scratch your arm frequently.
• Broken capillaries: Rubbing hard causes... Tiny capillaries under the eye have burst. The leaked blood will accumulate and leave behind iron deposits (hemosiderin), which can cause permanent dark circles, yellowing, or purple discoloration under the eyes.

3. Premature wrinkles: An unwanted bonus.

Besides causing dark circles, rubbing your eyes also damages collagen and elastin, leading to... Fine lines and wrinkles That's incredibly fast compared to normal people.

Allergies cause blood congestion (purple/green) + itching. $\to$→ Leads to rubbing your eyes. $\to$Rubbing your eyes causes pigment accumulation (brown pigment) and wrinkles.
so that It's a combination of both. Yes

Dark circles under the eyes from allergies/rubbing eyes vs. age/deep wrinkles

หัวข้อ	1. Allergy & Eye Rubbing (Pigment & Vascular)	2. Age Group & Wrinkle Depth (Structural Shadow)
Main cause	caused by blood clots (Allergies) and The pigment becomes darker. Due to inflammation and friction (rubbing the eyes).	caused by Orbital bone collapse And the fat under the eyes disappears with age, creating "deep wrinkles" that reflect light. shadow
Visible color characteristics	It's usually colored. Purple, blue, or gray. (Blood vessels) mixed with color. Sugar (Pigmentation from rubbing)	It's not really a change in skin color, but... dark shadows Caused by depth and hollowness.
Skin condition	The skin tends to Dry, rough Or it may thicken from frequent rubbing, and may be accompanied by fine lines.	The skin may look normal, but it looks... Deep jar Or, there may be bags under the eyes that protrude upwards, making the creases below the eyes appear more prominent.
How to do a basic check.	Try gently pulling the skin: If you pull the skin under your eye and "the dark discoloration comes off with the skin," it indicates a problem with pigmentation or blood vessels.	Try looking up at the fire: Or shine a light directly on his face. If the dark circles fade or disappear, it means they are just shadows from deep wrinkles.
Targeted treatment	Treatment involves skin conditions and medication: Treat allergies, stop rubbing your eyes, apply whitening cream, laser treatment to reduce pigmentation, get mesotherapy injections.	Solve by completing the sentence: must use Filler Fill in deep grooves to eliminate shadows, or undergo fat rearrangement surgery.