Suggest Treatment For Persistent Migraine Headaches

Hi doctor, I am at my late 25 years now. I have a problem of severe headache (migration) it might be one side and both side sometimes. The reason I found out for this headache are below mentioned. 1) pimples (acne) - whenever I get a pimple on my faces it cause a severe headache on both left and right side head. 2) I have sinus problem. So whenever I get cold and running nose or nose block due to dust allergy, I will get a severe headache on one side. For example: if my left nose is blocked due to cold, then I get pain on my left head. For a immediate remedy from this migrations, I use Dart headache tablets So my question is, 1) How can I get rid of this headache? because I cannot able to concentrate on anything if I had this migrations. Also I got this kind of headache atleast twice or thrice a month. 2) using dart tablet for recovery from headache causes any side effects? 3) kindly give some solutions to avoid this headache. Thanks in advance.