How do I prevent acne in my scalp?

[Gandalfthegrey]

I've been having these acne/pimples start in my scalp, then they get irritated and pop. Sometimes they'll get very big and form like a bump and my hair would fall off. The bumps hurt like a sore and eventually it goes away after a month or so.

[Caryopteris]

I had this.  I have Celiac disease.  I have dermatitis herpetiformis, which goes with Celiac disease.  I do not know if these bumps are DH or if it is another problem just caused by malnutrition that Celiac disease causes.  But is this your only symptom or do you have other signs of malnutrition?  

The first shampoo I would recommend trying is called Nizoral shampoo.  It is pricy but it is helpful for clearing many scalp conditions and it also helps regrow hair.  

I do many, many things to restore my health.  My scalp is much better, but I would say that shampoo was key.  
Here is another one:   Home Health Psoriasis Medicated Scalp and Body Wash  
Decrease sugar, increase veggies.  Get tested for Celiac disease.  
Soak scalp in warm water with Epsom salts.  Take magnesium and vitamin D supplements.  So many things I do for my health and my scalp is much better.

[Gandalfthegrey]

No it's not that. I think it's follicutis?

[Gandalfthegrey]

https://www.dropbox.com/s/vfyb5xofys05icn/20160515_151608.jpg?dl=0

Here is a picture