Skin Darkening After Using Hechlin Cream for Acne Scars - Dermatology

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After using Heparin..?


I previously had acne scars on my chin, so I visited a doctor at Asia University Hospital.
The doctor prescribed me Heparinoid ointment, but for some reason, the normal skin around the scars turned dark after applying the medication.
I apply the ointment at night and wash it off with water the next morning before work.
I also apply lotion, hyaluronic acid, sunscreen, and foundation on my face.
Why is this happening? What should I do?

allin, 30~39 year old female. Ask Date: 2009/05/04

Dr. Jiang Yujiao reply Dermatology


Hello: The surrounding normal skin around the acne scars has darkened after applying the ointment, which is likely due to irritation from the medication causing post-inflammatory hyperpigmentation.
There's no need to worry too much; changing your approach can help prevent this.
Apply the medication only directly on the acne, avoiding excessive application that could come into contact with the normal skin.
The hyperpigmentation will fade over time.

Reply Date: 2009/05/04

More Info


The skin darkening you are experiencing after using Hechlin cream (also known as Hydroquinone) for acne scars can be attributed to several factors, including the potential for irritation or allergic reactions, the effects of the active ingredients in the cream, and the environmental conditions in which you are using the product.

Hydroquinone is a common topical treatment for hyperpigmentation, including acne scars. While it is effective in lightening dark spots, it can sometimes cause paradoxical darkening of the skin, especially if used improperly or if the skin is sensitive to the formulation. This condition is often referred to as "exogenous ochronosis," which is a bluish-black discoloration of the skin that can occur with prolonged use of hydroquinone, particularly in darker skin types.
In your case, the skin darkening around the acne scars could be a result of several factors:
1. Irritation: If the cream is too strong or if you are using it too frequently, it may irritate the surrounding skin, leading to inflammation and subsequent hyperpigmentation. This is especially common if you have sensitive skin.

2. Sun Exposure: If you are using hydroquinone and then exposing your skin to sunlight without adequate sun protection, this can exacerbate pigmentation issues. Hydroquinone can make your skin more sensitive to UV rays, leading to increased pigmentation.

3. Improper Use: If you are applying the cream at night and not allowing it to absorb properly before washing it off, or if you are layering it with other products that may cause irritation, this could also contribute to the problem.

4. Underlying Skin Conditions: If you have other skin conditions, such as eczema or psoriasis, these could also be contributing to the changes in pigmentation.

To address the skin darkening, consider the following steps:
1. Discontinue Use: Stop using the Hechlin cream for a while to see if the discoloration improves. It’s essential to give your skin a break from potentially irritating products.

2. Consult a Dermatologist: Since you have already seen a doctor, it may be beneficial to return for a follow-up. They can assess your skin's condition and recommend alternative treatments that may be less irritating.

3. Sun Protection: Use a broad-spectrum sunscreen with an SPF of 30 or higher daily, even if you are indoors. This will help prevent further darkening of the skin and protect it from UV damage.

4. Gentle Skincare: Switch to a gentle, hydrating skincare routine. Avoid harsh exfoliants or products that may irritate your skin. Look for products that contain soothing ingredients like aloe vera, chamomile, or niacinamide.

5. Consider Alternative Treatments: If you are looking for alternatives to hydroquinone, there are other options available for treating hyperpigmentation, such as azelaic acid, kojic acid, or vitamin C serums, which may be less irritating.

6. Patience: Skin healing and pigmentation correction can take time. It may take several weeks to months for the discoloration to fade, so patience is key.

In summary, while hydroquinone can be effective for treating acne scars, it is essential to use it correctly and be mindful of potential side effects. If you experience any adverse reactions, consult with a dermatologist for personalized advice and treatment options.

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