I have a headache. Please help me!!

I'm sneezing a lot and i don't want to infect anyone around me. What can i do?

My Little brother is sneezing a lot and he has a runny nose. i think he might have fever because he is very hot! What should i do?

My ear aches. It really hurts I can't hear anything in this moment.

I have a stomachache. I could not sleep well last night and I feel very tired.

I have a sore troath. What can I do?