Can I keep using minoxidil for my beard after a CO₂ laser session for acne scars?

Hello, Javier:

After a fractional CO₂ laser session, it is advisable not to apply minoxidil to the treated area until the skin has restored its barrier function.

The CO₂ laser produces a controlled renewal of the skin through microcolumns of treatment. During the first few days, the skin remains inflamed, more sensitive and with a reduced ability to protect itself from potentially irritating substances.

Most minoxidil formulations in foam or solution contain alcohol or other excipients that can cause stinging, intense irritation, delay healing or promote greater absorption of the medication while the skin has not yet recovered.

In general terms, I advise waiting between 3 and 5 days before resuming minoxidil. However, if the treatment was more intense or recovery is slower, it may be preferable to wait until the crusts, intense redness and sensation of irritation have disappeared. In some patients this may require 5 to 7 days, or even more, depending on the intensity of the procedure.

During that period, the most important thing is to follow the post-laser care correctly:

• Keep the skin well hydrated with the cream recommended by the specialist.

• Avoid irritating products, such as exfoliating acids, retinoids or products containing alcohol.

• Use a broad-spectrum sunscreen and avoid direct sun exposure.

• Do not pick at the crusts or the areas that are healing.

If you use minoxidil on another area that has not been treated with the laser, such as the scalp, you can continue applying it as usual, making sure it does not come into contact with the treated skin.

If in doubt, always follow the instructions of the doctor who performs the treatment, since recovery time can vary according to the power of the laser, the depth of the treatment and each patient's characteristics.

I hope I have resolved your question and I wish you an excellent recovery.

Kind regards,

Doctor Florian A. Vallecillo Cabrera