Hello, Thanks for choosing health care magic for posting your query. I have gone through your question in detail and I can understand what you are going through. Pimples on the scalp can be responsible for the headache that you are describing. It is an infection of the scalp most probably a fungal infection or a bacterial infection. The best way would be to get it examined by a doctor or take a photo and upload it to us to have a look at the pimples. You will certainly need a course of antibiotic such as cefexime initially. Hope I am able to answer your concerns. If you have any further query, I would be glad to help you. In future if you wish to contact me directly, you can use the below mentioned link: bit.ly/dr-srikanth-reddy Wish you good health, Kind regards Dr. Srikanth Reddy M.D. Neuro-Psychiatrist and Sexologist