i'm sorry you're going through this. many conditions can cause skin lesions like the ones you describe and most of them are benign (non-cancerous). presumably that's what your gp thought or he probably wouldn't have suggested freezing them. since you're concerned i suggest you consult a dermatologist who has more training in skin lesions. he or she can tell you exactly what these lesions are and what treatment (if any) is appropriate. take care and good luck!
i am 50 year old male bald patch has 3 persistant sores which crust flake off & reappear sometimes bleeding. . size 1-2mm. about 12 months duration. bactroban topical not help at all. gp at local medicross wanted to freeze off with liquid nitrogen but i am not convinced that this right.