Hi, Your child needs treatment primarily for erythema multiforme minor. It is an acute condition where you get multiple red rashes or target like lesions along with fluid filled lesions over the body. very mild forms can be treated with calamine lotion and topical steroids. In your case, as its painful and the lesions are painful, your child needs systemic antibiotics and steroids along with topical antibiotic and steroid based creams. Dont waste your time and consult your dermatologist as though the condition is easily treatable it can increase in severity over a period of time. Also, a complete clinical history along with physical examination is required to rule out the causative factor. Viral infections and drugs are the most common causes of EM. once the EM phase subsides scabies and molluscum can be easily taken care of. Take care