I would be pleased to answer your question .
It looks like you might be having Psoriatic Lesions with bumps and scaling and scabbing . It may be a variant called Guttate Psoriasis
You will need to take an antibiotic course . The best one advisable for this is : Roxithromycin
and you can also apply a mixture of OTC cortisone
and a good moisturizer .
Please do book an appointment with the Dermatologist
to confirm the diagnosis
Thanks and Take care