HI,Welcome to HCM with your query.
Based on the facts of your query,I would suggest you to consult a Physician rather than self-decided aspirations of blood from such lumps.
As
Sarcoidosis is auto-immune disease with lungs inflicted in 90 % patients,possibility of lung affection in time to come is challenge which you should be worried about.
Skin lumps currently indicate,that the auto-immune attacks are recurring and active after 8 weeks again.And you have to be on watch with your doctor.
You need to be very careful with your bland and well balanced diet,which mostly is the exacerbating factor known in such cases like auto-immune diseases.
I would hence suggest to be under guidance of your Physician and be with needful medicines to control the remissions periods with these medicines like
Steroids with Vit D3 supplements.
Hope this would help you to plan treatment with your doctor.
Will appreciate your review write up and hitting thanks,to help needy patient visitors like you at HCM.
Welcome for any further query in this regard.
Good day!!
Dr.Savaskar M.N.
Senior Surgical Specialist.
M.S.Genl-CVTS