Hello. Thank you for writing to us
Cystic type of acne is an indication for oral retinoids i.e
Isotretinoin and would not respond as well to minocycline.
Cystic type of acne is the most severe grade of acne and is prone to scar therefore treatment should be aggressive and started early.
Retinoids are antiinflammatory, comedolytic, sebostatic i.e inhibit sebum production and therefore have multipronged action in acne. They are one of the best choices for cystic type of acne.
In addition to oral retinoids I would suggest you to use topical antiacne preparations like
benzoyl peroxide, clindamycin,
nadifloxacin etc.
Single or just a few cystic acne lesions can also be treated by Intralesional injection of
Triamcinolone acetonide.
It comes as an injection of 10 mg/ ml. I usually dilute it (1:4) with sterile water and inject a small amount of it (0.05 to 0.1 ml) directly into the acne nodule or cyst.
This usually flattens an acne cyst or nodule within 36-48 hours.
This procedure would however be done only by a
dermatologist at his office and therefore might not be an option.
Regards