I found this little guy in my backyard and I'd love to keep him. His eyes are half closed like in the photo. Is there a way to treat this at home?

1. Size of enclosure
10 g, glass with screen top

2. # of inhabitants - specifically other frogs and size differences
one toad of unknown sex

3. Humidity
40-60

4. Temperature
81f

5. Water - type - for both misting and soaking dish
Tap treated with reptisafe

6. Materials used for substrate
Spagnum moss and coconut fiber

7. Enclosure set up i.e. plants (live or artificial), wood, bark and other materials.
ceramic hide and resin water dish.

- How were things prepared prior to being put into the viv.
bleach and rinsed well

8. Main food source
large crickets so far

9. Vitamins and calcium? (how often)
none so far

10. Lighting
ambient room lights, dim

11. What is being used to maintain the temperature of the enclosure
ambient room temp, I'm in az

12. When is the last time he/she ate
last night when he was outside maybe?

13. Have you found poop lately
nope

14. A pic would be helpful
https://www.dropbox.com/s/al1rttdj4i....41-1.jpg?dl=0

15. Describe frog's symptoms and/or recent physical changes; to include it's ventral/belly area.
Keeps eyes partially closed like in the photo

16. How old is the frog
unknown

17. How long have you owned him/her
1 day

18. Is the frog wild caught or captive bred
Wild caught

19. Frog food- how often and if it is diverse, what other feeders are used as treats
none accept crickets

20. How often the frog is handled
After initial setup not at all.

21. Is the enclosure kept in a high or low traffic area
low
22. Describe enclosure maintenance (water changes, cleaning, etc)
often water changes.

Thanks for any help you might give!