What’s something that helped your baby when they were sick?

I don’t think my daughter is feeling well at all. Her temperature is only 98.5 so I don’t think it’s anything too serious, but she has just been wanting to lay on me all day long and hasn’t had much energy to play. Her cheeks are bright red so it is possible it’s teething. Is there anything that helped your babies when they’re not feeling well? Thanks :)