This is permissible.

Does Islam allow hair loss treatment in the form of taking tablets and moisturisers (for men or women) to restore hair growth? (In our family, men and women are suffering with extreme hair loss, alhamdulillah)

Medicine and medical treatments | March 5, 2014 12:36 pm
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Can you clarify the issue of blood donation? We are having problems in convincing the Muslim populace especially the youth to donate blood. One obstacle we are facing is the notion that they have – the blood a Muslim donates should go only to a Muslim
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One of my friend her father is very ill.Only his 15% of heart is still working somehow ..the doctor said he could die any second? is there any way he could at least live 1 or 2 months more?