Question : Is dua e Alqama mandatory to recite with ziarat Ashura?
Answer : The supplication of Alqama is not part of Zyarat Ashura. It is one of the recommendation that one can recite after the Zyara.
Question : I would like to know the benefits of reciting ziyarat?
Answer : We are unable to determine all the benefits behind such good deed but no doubt that some of them are the obedience and the fulfillment of the orders of the imams (peace be upon them) as their orders were to perform such sermons.
In addition to that, the ziyarats consist of refreshing the loyalty and the love of the imams plus the encouragement to follow the imam that is being visited by the ziyarat as the ziyarat usually contains praising the prophet and the imams by being righteous slaves of the lord, devoted to Him and doers of religious obligations.
Question : Imam Hasan Askari said that a devotee has 5 identities. Ziyarat e arbayeen is one of them. Should this read only 20 safer or daily to a believer?
Answer : What the narration means is that it is recommended to recite the ziyara on the 20th of Safer. Yes, it is permissible to do that anytime with the hope that the believer is rewarded for such an action.
Question : Ziarat-e-Ashura is recommended to be recited for 40 days continuously. My question is Can a woman recite the ziarat during her menstrual cycle? At the end of the ziarat, there is one sajdah. If a woman does choose to recite the ziarat during her menstrual cycle, what does she have to do when she has to prostrate?
Answer : The mentioned ziyara is recommended every day and not only on a continuous 40 days. Yes, it is known to believers that reciting it continually is amongst the reasons to answer the requests in the supplications. The woman in her period can recite the ziyara without praying the two rakat prayers; she can do the rest including the prostration.
Question : What are the most effective supplication / Ziyarat?
Answer : There are lots of zyarats reported by the Ahlulbait (Peace be upon them) like the Jamiaa, Warith and Ashura also there are lots of supplications like Kumail and the supplications of Sahifatul sajjadia.
Ziyara from far away
Question :

If a person lives very distant from the shrines of the Ahlulbait (peace be upon them) and cannot reach there, is the recitation of Ziyara and salutation from afar equally virtuous and acceptable?

Answer :

There are no narrated texts from the Imams of the Ahlulbait (peace be upon them) that explain such an issue and clarify it. However, there is nothing wrong with reciting the Ziyara from far away with the hope that it is rewarded.