1cm scabs that developed from a pimple - 3 on my left thigh, 4 on my bottom and a cluster on my back. Also blister rash developed after scratch healed?

Rash. The main concern is that you have developed a secondary infection; such as staph or strep and you require an antibiotic as part of your treatment. If it is 1 sided and you have a history of chickenpox, it may be herpes zoster. Follow up for further care. All the best.