How Can I Reduce Mouth And Throat Pain, And Severe Itching Caused By Widespread Chickenpox?

Hello i am 34 year old man i have infected with chicken pox now all my face head and body severely have chicken pox and due to which i feel very itchy and specially on my head or face so tell me about this how can I reduce my itching and one thing more my mouth throat all have the chicken pox that also cause me a severe pain