Absolutely. It's one of the reasons teenagers have higher rates of acne. IGF-1 can stimulate sebum production and processes conducive to acne formation.
What acne are you getting? Is it face or body? Tazarotene cream or gel spot treatment and face will clear that up. It's a topical cousin of accutane, but much newer. Also the strongest anti-aging compound you can get that actually works.
It's not really a common side effect, but it's possible and generally, easily address. The above treatment will help even if GH is not the cause of the acne.
You can get an Rx from your primary doctor, a dermatologist or order from overseas pharmacies (reliableRx, alldaychemist, inhousepharmacy). There may also be some online services that provide it for you like those hair loss treatment ones. (Roman / Keeps /etc)