1) Acned 2) Blemished 3) Pimpled 4) Pimply 
• (a.) Alt. of Pustulated • (v. t.) To form into pustules, or blisters.
Covered with pustules or small blisters.
<dermatology> Covered with small pustule- or blister-like elevations. ... (15 Dec 1997) ... 
Pus'tu·late transitive verb [ Latin pustulatus , past participle of pustulare to blister, from pustula . See Pustule .] To form into pustules, or blisters. 
pustulate 1. To form pustules or blisters. 2. Blemished by imperfections of the skin; such as, being covered with small pustular or blister-like elevations.