After years, my minoxidil is causing itching

Ive been taking minox for about 4 years now, (fin too) and suddenly in the past month the area where i apply has become incredibly itchy. It also looks like im losing denisty and hair in those areas, even though im not actually getting any hairs loose when i put my fingers trough it. Hair is pretty long now so id notice. The few hair i do get out look very thin. I find myself half sleeping scratching the area , i cant help myself.ive started using ketoconazole every day now for the past 2 weeks, it hasnt gotten better yet. Its the same brand, same amount and same place i get it from.

You may be allergic to the minoxidil or the carrier within the preparation. Ask your pharmacist for a different minoxidil brand with a different carrier.