سلام عليكم أنا مصاب بأكزيما مزمنة في كامل جسدي وتزيد حدة في الشتاء مع كثرة الوضوء يزداد الجلد جفافا ، هل يجوز لي التيمم ؟جزاكم الله خيرا

Tayammum is allowed only if water harms you, by worsening the illness or delaying recovery, as doctors confirm, and mere discomfort is not an excuse, as Imam Ibn Baz and Imam Ibn Uthaymin said. If only some parts are harmed, wash the healthy parts, wipe the harmed part if wiping does not harm it, and otherwise make tayammum for it. Keep in mind do what the doctors say I am just speaking generally of the rulings and the sayings of the scholars. However the doctor will instruct you to what you need to do regarding your condition and you should follow their advice.