Thanks for posting your query at DoctorSpring.com. I can understand your concern.
This seems to be actinic keratosis, which is a premalignant condition. It is a UV light–induced lesion of the skin that may progress to invasive squamous cell carcinoma, hence its important to treat it as soon as possible.
It will be best to visit your dermatologist and get a biospy done from him to confirm the diagnosis.
The treatment options that he provides will be depending on whether its progressing to squamous cell carcinoma. Aldara cream helps in treatment of actinic keratosis.
Please let me know if you have any queries.