I will share the following cold remedy that has twice worked successfully for me here. It is often hard to cure a cold, given the hot weather and air con car and bedroom. A good friend here from Scotland put me onto this. HOT TODDY 6 ounces hot water 3 cloves 1 or 2 tablespoon honey (you can substitute brown sugar for honey) 1 ounce lemon juice or calamansi juice 1 or (2 for me, bad cold) shots whiskey (I used some Johnny Walker Black I had). Can use green tea for virgin or morning drink Stir then breathe in the steam and drink and enjoy. For me, no headache and good results.
Hot Toddy, had a few of those in my time coming in from working out side in the cold rain and wind. And if you are feeling feverish take a paracetamol.