5 year child complains of difficulty in swallowing ..there is small reddish swelling kind below 👅 tongue.... diagnosis and treatment plan for this case ???

65yrs male having thi5 pain ful lisone snce 10dy spit dx rx

32yr male ,p/h/o kochs n treated,plz suggest dx n mx

F 2&1/2 years has white patches on lip,tongue also minimally affected since 4 days.No as such complaints.Pls suggest

60y/f. C/o Pain burnning and swelling of mouth since 3 days.h/o tablets etorica 90mg use after start this types lession. No h/o htn dm etc Vital normal Dx rx