Block random sampling will be done in two intervention and control groups. The sequence of random allocation and the list of blocks will be obtained by the statistical consultant and with the help of R software. The website https://www.sealedenvelope.com is a useful site for generating random sequences for block randomization. This site is designed in such a way that there is no limit on the number of groups for random allocation. The number of people assigned to each group is almost equal. In this method, blocks are formed based on the variables in question. Block randomization works by randomizing participants into blocks, so that an equal number are assigned to each group. Equal numbers of participants are included in the intervention and control groups at consecutive but equal intervals. After each patient and family enter the clinic, according to the block of four (15 blocks of four) prepared in the first stage, each patient will be randomly assigned to group A (intervention) or B (control group). For example, after randomly selecting a block such as ABAB block, patients are randomly placed in the intervention, control, intervention, and control groups, and the next patients are placed in the BBAA block as control, control, intervention, and intervention groups. After creating a random sequence, sampling must be done by hiding the 21 created sequences. In such a way that before assigning an individual, the assigned group is not specific for the samples. This can be done by putting a random sequence inside the envelope and choosing the non-transparent envelope by people. In this method, first a random sequence is created, then based on the size of the research sample, a number of envelopes are prepared and each of the created random sequences is recorded on a card and the cards are placed in the envelopes in order. In order to preserve the random sequence, the outer surface of the envelopes is numbered in the same order. Finally, the lid of the letter envelopes is glued and placed in a box in order. At the time of the registration of the participants, according to the order of entry of the eligible participants into the study, one of the letter envelopes is opened in order and the assigned group of that participant is revealed. becomes Each patient's code will be assigned to his family member. People are assigned to the desired group in the order of their entry into the study and randomly through randomized blocks.