Wipe away the excess fallout powder around the nail bed and outside of the nail with a clean, dry brush. Then, use a smaller-size brush to apply the first topcoat. Be careful to not use your regular topcoat brush because you might get some holo fallout into the bottle. After curing for 60 seconds, go in with another coat using the regular topcoat brush and cure for a further 60 seconds.
Image Source: POPSUGAR Photography / Tori Crowther