If blood is continuous for 3 days then after that there is break then blood again, do I have to pray in the break? If yes then do I have to do ghusl before prayer?

450. If a woman sees blood continuously for three days, and then it stops for a brief period before it is seen again, and if the total number of days in which blood was seen and in which it stopped does not exceed ten, then the days in which blood flowed will be counted as of Hayz, and the in between period of respite will be of obligatory precaution, during which she will do all that she should do when she is pure, and also refrain from all those acts which are forbidden to the Haaidha.