After my last round of Botox, my forehead became extremely oily. What should I do?

Oil glands are regulated by hormones and not affected by Botox.  The sweat glands however are affected by Botox - but their activity is reduced - that means you should sweat LESS after Botox.  In any case - after 6 months, all the effect of Botox should have subsided  - so whatever makes your forehead oily is not from the Botox.  Check with your dermatologist - good luck !

Hi there. I'm sorry to hear about your concerns
following your BOTOX treatment. However, it's unlikely that your oily skin is
due to BOTOX. In fact, there is a bit of anecdotal evidence that BOTOX actually
decreases oil production, although more research is needed. Increased oil
production can be caused by many factors, including hormones, skincare
products, and even the weather. Lumps do occasionally occur after BOTOX and are
sometimes caused by a blood vessel being punctured during the injection. I
recommend seeing a board-certified dermatologist to get to the bottom of your
oiliness and lumps. Best of luck.

It has been six months since your Botox injection so the Botox has likely worn off. We know that Botox can affect the sweat glands and there is decrease in sweating. It is likely that Botox will decrease the production of oil. (And, as a side note, Botox increasing oil has never been reported.) I would suggest a HydraJuve Age Prevention Facial or an Ultimate Hydration Facial to detoxify, cleansed, hydrate and rejuvenate your skin.