Cryotherapy. Not everything cool about it !
Cryotherapy is one of the effective modality for keloid therapy. It is application of liquid nitrogen to keloid tissue. It freezes the tissue to -1960C. This destroys bad collagen and helps controlled deposition of good collagen. Though it is effective it is extremely painful and only 2 out of ten patients could tolerate this. It leaves a raw wound behind that takes several weeks to heal. It invariably leaves white depigmented scar behind as it destroys melanocytes irreversibly. In Indian scenario, white depigmentation as never wecome by patients. So cryotherapy is NOT a treatment of choice in Indian skin.