1 If he has a backache he sholdn't lift anything heavy.
2 John doesn't like the taste of milk.it makes him cold.
3 Dmitry has a terrible cough it's so loud that it's keeping everyone awake at night.
4 I have a skin rash.It's very itchy.
5 Darya is sneezing and coughing a lot I think she has a cold.
6 Evgeny needs to go to the dentist immediately.His toothache is getting worse.