John Gill Commentary Leviticus 15:28

"But if she be cleansed of her issue, then she shall number to herself seven days, and after that she shall be clean." — Leviticus 15:28 (ASV)

But if she be cleansed of her issue
The disease is healed, or a stop is put to it; there are no signs of it remaining: then she shall number to herself seven days ;
from the time she observed it to cease: and after that she shall be clean ;
having bathed herself according to the usual manner of unclean persons, for their cleansing; when she would be fit to be admitted to her husband, though not as yet into the tabernacle, until she had offered her offering next directed to.