You'll want to give your face plenty of time to heal, so PDO threads aftercare is essential. And part of that aftercare is holding off on other cosmetic procedures like filler until you are given the green light.
It's best to wait for about one-month post-PDO thread lift before injectables or fillers are injected into the face. This provides ample time for the threads to settle and for any swelling and bruising to subside. Injecting filler too soon can cause undesirable thread results and complications like shifting fillers and additional swelling and bruising in the area. Before deciding on any fillers, it's best to ensure your provider tells you the healing process is complete.