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What Is Doxycycline?

  • Writer: Evan Trinh
    Evan Trinh
  • Jul 2
  • 2 min read

Prescribed by my dermatologist nearly two years ago, I began taking doxycycline pills paired with 0.1% tretinoin cream. Around this time period, I would often break out after spending long periods in the sun or sweating from physical activities. After a visit to my dermatologist, she prescribed this medication, which I incorporated into my daily routine. Here is what you need to know about doxycycline and how it actually works for acne.


Doxycycline is a tetracycline antibiotic that is commonly used to treat acne by reducing bacteria and inflammation in the skin. According to Drugs.com, it works by slowing bacterial growth and reducing inflammation. It is not an instant fix but instead works over time to help control breakouts from within. Dermatologists often prescribe it for inflammatory acne that does not respond well to topical treatments alone.


In my case, doxycycline was paired with tretinoin cream. Covered in a blog written by Vice President Ryan Wong a while back, tretinoin helps increase skin cell turnover and prevents clogged pores. On the other hand, doxycycline works internally to reduce inflammation and acne-causing bacteria. Using both together is a common approach because they target acne in different ways and complement each other.


I was usually instructed to take doxycycline once or twice a day depending on my prescription. At first, I did not fully understand how important consistency was, but I quickly learned that missing doses or being inconsistent with my skincare routine could affect my results. This type of treatment requires patience and routine rather than expecting immediate change.


Like many medications, doxycycline does come with possible side effects. One of the most noticeable for me was increased sensitivity to sunlight, which made sun protection extremely important. I had to be much more careful outdoors and made sunscreen part of my daily routine. Some people may also experience mild stomach discomfort or nausea, especially if taken without food.


It is also important to know that doxycycline is not typically a long term solution. Dermatologists usually prescribe it for a limited period of time to help bring acne under control before transitioning to topical treatments like tretinoin for maintenance.


After researching more about this prescription, here is what you need to know if you are considering or currently using it as part of your skincare routine. Always follow your dermatologist’s instructions, be consistent with dosing, and protect your skin from sun exposure.


I hope you enjoy your journey with doxycycline! After using it for a few months, my results came quite fast and I am beyond happy with this prescription. Although I have flares here and there, I really believe that this, being paired with tretinoin, calmed down my breakouts, especially during stressful periods.

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