For good health
on Dhanvantri Bhagavan
Om namo bhagavathe
vaasudevaaya Dhanvanthrayae
amrutha kalasa hasthaaya
sarvaamaya vinaasanaaya
trailogya naadhaaya
sree mahaa vishnavae nama
Slokam in Tamil
ஓம் நமோ பகவதே
வாசுதேவாய தன்வந்த்ரயே
அம்ருத கலச ஹஸ்தாய
ஸர்வாமய விநாசனாய
த்ரைலோக்ய நாதாய
ஸ்ரீ மஹா விஷ்ணவே நம

Dhanvantri gayatri

om tat purushaaya vidmahae
amritha kalasa hastaaya dheemahi
tanno dhanvantri prasodayaat
or
om aadivaidhyaaya vidmahae
arogya anugrahaaya dheemahi
tanno dhanvantri prasodayaat



Sanjeevi Maruti slokam
Manojavam maaruta tulya vegam
jitendriyam buddhimataam varishtham
vaataatmajam vaanara yootha mukhyam
Shriiraama dhootam sirasaam namaami



Balambika slokam
Balambikecha vaideesa
bavaroha hare teeja
jaber naama tryam nityam
mahaa roha nivaaranam



Garuda Gayatri
(to protect from viral fever, all diseases, poisonous bits)
om pakshi raajaaya vidmahae
swarna pakshaaya dheemahi
tanno garuda prachodayaat
Garuda moola mantram
Om eem om nama bhagavathe
mahaa garudaaya paksha raajaaya
Vishnu vallabhaaya trailogya paripoojitaa
ugra bhayangara kaalaa nalaroobhaaya
vajra nahaaya vajra tundaaya
vajra tantaaya vajra thamshadraaya vajra puchchaaya
sakala naaga dosha rakshayaaya
sarva visham naasaya naasaya
hana hana daha daha pacha pacha pasmee guru pasmee guru hoom phat swaaha
Source: https://www.dhevee.org/garuda-moola-mantra/



Apadudhdhaaraka stotram
Roga nivaarana stotram
achyutaananta govinda naamochaarana beshajaat
nashyanti sakalaa rogaah satyam satyam vadamyaham

achyutaananta govinda vishno naaraayanaamrutha
rogaanme naashayaasheshaana ashu dhanvanthare hare

achyutaananta govinda vishno dhanvantare hare
vaasudevaakhilaa nasya rogaan naashaya naashaya

achyutaananta govinda sacchidaananda shaasvata
macchetho ramataam nityam tvachcharu charaNaam buje

somanaatham vaidyanaatham dhanvantarimthaashvinau
etaan samsmaratah praataha vyaadhihi sparsha na vidyate

or just chant
achyutaa anantaa govindaa
achyutaananta govinda



From Naaraayaneeyam
Dasaka (Chapter) 8, shlokam 13
asmin paraatman nanu paadmakalpe
tvamittha muthaapita padmayOnihi
anatabhoomaa mama rOga raashim
nirundhi vaataalaya vaasa vishnO

Dasaka (Chapter) 28, shloka 10
taruNaambuda sundarastadaa tvaM nanu
dhanvantarirutthi tO(a)mburaasheh .     
amrutam kalashe vahan karaabhyaa makhilaartim    
hara maarutaalayesha



Related Links
Melapathur Narayana Bhattathiri's Narayaneeyam - Complete presentation of all 1036 Shlokams in 100 Dasakams with audio, transliteration and meaning in English
https://sanskritdocuments.org/sites/completenarayaneeyam/Nymwelcome.htm

Melputhur Narayana Bhattathiri started composing the Narayaniyam. It is said that he would recite one dasakam, consisting of ten verses, every day. The local legend says that on the hundredth day he had a vision of the Lord, and rendered a graphic description of this form, after which he was immediately cured of his disease.
https://en.wikipedia.org/wiki/Narayaniyam

http://dailyslogams.blogspot.com/2015/02/sri-rama-apaduddharaka-stotram.html

https://templesinindiainfo.com/apaduddharaka-hanumath-stotram-in-tamil-and-english-with-meaning/