Tayammum

Q: My mother is 70 years old...she is suffering from pollen allergy but the allergy is not restricted to only pollen months (feb-march-april)...The problem is the allergy continues through out the year. She is now even allergic to dust, water etc. The problem increases in winter as soon as she wakes up for fajar and does wudu. She starts coughing sneezing etc. and the same applies for all the prayers. Due to her age, when she coughs, some times urine drops leak out...then she has to go to washroom, do paaki, do wudu again and the problem increases further due to all this.. Again she has to do wudu and coughing etc. Her age does not permit to go through all this process again and again. So someone advised to do tayyamum especially for magrib and isha when she has the peak of allergy. My question is from where to get the paak soil for tayymum? We have a park in front of our home but many animals even pigs roam around there. We can't use that soil and the walls are all painted..no dust on them. What to do?

Q: My issue is that I have been suffering from major depressive disorder, panic attacks and anxiety since few years, I have also been seeking multiple treatments from Psychiatrists, Homeopaths etc. However over the years my behavioural disorders has progressed and the situation has gotten very complex, I am seeking a fatwa for 2 major issues which affect my obligatory worship and what should I do in this condition.

a. My first issue is not being able to offer Fajr prayers as I am also suffering from a sleeping disorder despite being on 2 tranquilizers I have to go bed at 10 pm. If I delay further my situation worsens similarly I cannot force myself to wake up at an appointed time and I usually get up around 7 AM, then after getting up I offer Qaza of Fajr, I have tried forcing myself but It leads to dizziness, confusion, mild seizures and trembling.

b. My second issue along with many other issues of abnormality is usage of water. Since my condition has worsened, my immunity has dropped and I regularly catch cold and flu every other week which gets very severe and occasionally leads to fever and even more weakness that too when I am not using water, I have tried again and again to use water for bath and ablution but I end up with extensive sneezing, cold and bouts of flu. Am I Allowed to perform Tayammum in this condition for achieving cleanliness and ablution till this condition remains? Similarly I can’t remain for long in an airconditioned environment and end up with the same above problems.

Having mentioned the above 2 issues, I am also looking to seek further treatment in order to get the above issues resolved In Sha Allah, however meanwhile I need to know what should I do. I get different opinions from different people which further confuses and stresses me out.

Further in this condition, I also suffer from muscle weakness, eating disorder and severe digestive issues. I also request you to sincerely pray that Allah Subhanahu Wa Ta'ala heals me and my condition gets normal also kindly advice me if I can seek any kind of cure through Quran or Duas as I am also Hafiz of Quran. 

Q: A patient in hospital is put on drips. He is unable to perform wudhu and cannot perform salaah facing the qiblah. How should he perform his salaah?

Q: What types of material are allowed for doing tayammum? Can plaster of paris be used for this purpose?