In case the Crohn’s disease was diagnosed with certainty, this symptom of yours can definitely be linked to your Crohn’s disease. You have not mentioned in your query as to whether you are on treatment for Crohn’s or stopped it
Next Steps
Get it examined by Gastroenterologist and a Colorectal Surgeon. This is a perianal complication of Crohn’s and if neglected can lead on to debilitating complications. Don’t delay any further.
Health Tips
Don’t delay a consultation. ASAP