Rashes after 2 days of fever gone.

My baby age is 1 years and 2 months. Baby got fever on 8th late night . I gave crocin drops 1.4 ml as consulted by doctor . Doctor suggested to have blood test if fever continues after 5 days. Fever start date : 8th late evening (around 10 pm) Fever end date :10th late night Baby activity: baby's activity is completely normal since 11th oct. Medicines consulted by doctor are as below Crocin drops(1.4ml every 6 hours OR meftol 3.5 ml ) Syrup taxim o forte 3.5 ml twice a day Tablet nalzol junior 1/2 tablet twice a day On 13th afternoon, we noticed little redish rashes. Doctor consulted to use lactocalamine for a while . Looking for your suggestions based on above information given. Are these rashes becuase of medicine? What could be next step suggested for me.