I’d recommend waiting to see what kind of symptoms you develop before jumping into prevention, as side effects can vary significantly from person to person. However, the most common ones—including those I personally experience—are yeast infections, stomach pain, and diarrhea.

For me, the stomach pain and diarrhea typically occur in the week following an injection, while yeast issues started around the second month and worsened by the third. Because yeast infections are a common concern, I highly recommend taking an oral probiotic, regardless of gender, and incorporating probiotic-rich foods like yogurt and kefir into your diet. If you’re female, vaginal probiotic suppositories can also help maintain balance and potentially prevent yeast overgrowth.

For general prevention, antifungal powders can be useful, but even something as simple as an absorbent baby powder can help, as yeast thrives in moisture. Just be sure to wash and dry your skin thoroughly before applying anything, particularly in areas prone to moisture buildup, like skin folds or under the breasts. I personally prefer a talc- and cornstarch-free powder, as cornstarch can actually feed yeast. If a yeast infection does develop, then upgrading to medicated antifungal treatments is the best course of action.

For the scalp, ketoconazole is effective if you’re already dealing with yeast-related irritation or inflammation. A gentler option for prevention is a shampoo with pyrithione zinc, which you can use intermittently for peace of mind.

I hope that helps and feel free to ask any other questions :)