Thanks for writing to us.
From the clinical history provided, these lesions seem to be contagious . These could probably be viral warts
or molluscum contagiosum
lesions. The diagnosis can only be confirmed by a visit to a dermatologist
Treatment for the above mentioned probabilities is in the form of topical creams like tretinoin
or salicylic acid( response variable) or a more definite treatment like cautery of the lesion.
Hope that helped