How can i get help if i suffer from neurotic excoriations?

See your doctor: These are skin lesions caused by excessive picking or scratching, and it shares some commonalities with ocd. You might start with your family physician, who would want to make sure there's no infection or other illness present. S/he might suggest an ssri to help with this. Low dose Doxepin can help with any itching too. Referral to therapist and/or psychiatrist for more ongoing work on this.