Permissible and Impermissible actions in Ihraam

Q: Is it permissible to kill a cockroach or spider found in one's hotel room in Makkah when in the state of ihram?

Q: I just wanted to ask if it is makruh to attach safety pins to ones ihram in Hajj?

Q: Kindly advise the ruling on haemorrhoids (piles) while going for hajj. 

Q: Is it allowed in ihraam to take a shower without using shampoo, soap and changing the ihraam during the 5 days of Hajj?

Q: Can a person change his ihraam cloths? Is there any difference in the masalah if there is an excuse or not?

Q: I'm male and suffer from male pattern baldness and as a result I'm wearing a wig to only cover the top part of my head, the rest of my hair is my own.

1. Am I allowed to wear the wig while I perform Umrah?

2. If not, and I continue wearing it do I have to pay dumm?

3. How much is the dumm and what do I need to do?

Q: I would like to know can I use non scented lotion and non scented sunblock while in ihram.

Q: While in the state of Ihraam, is it permissible for one to use toothpaste that contains fragrance?

Q: I'm leaving for umra today Insha-Allah, can I apply cream on my face as it's very dry. Jazakallah

Q: Please can you advise me, we intend going for umrah in April. My son who is 9 will be coming with us. The intention is to make him wear ihraam from madinah. Is it fine if he wears underwear?