Question
I have a dust allergy that worsens in the cold, and if I perform ghusl and wudu for each prayer five times, I get a cold and I suffer from passing gas immediately. Is it permissible for me to perform tayammum all the time? And if tayammum is permissible, should I use the same dust or do I need to renew it?
Answer
I say, and with God's success: If using water is harmful to you, it is permissible for you to perform tayammum, and there is no need to change the soil in tayammum, and God knows best.